Rational Cards

Description: Warning! Critical Thinker Sign - Rational Logic Philosophy. Make people aware that using reason you have the ability to analyse the facts by thinking clearly and rationally to understand logical connections between ideas to form an impartial judgment. A valid design in a world of growing corruption, cancel culture and knee-jerk reactions. Available for self-disciplined, corrective problem-solving thinking men and women.

Description: a proposed prop for an unmade movie - on the wall in a lab where scientists aren't interested believing, but in knowing

Description: A bold vintage-style lettering design featuring the phrase ‘Science Because Magic Stopped Working’, accented with stars, sparkles, and whimsical symbols. A playful tribute to logic and curiosity, perfect for scientists, students, teachers, and science lovers who enjoy clever humor.

Description: Funny shirt for those who understand the pun. Do you think your friends would understand this?

Description: Jane Austen - Rational Creatures - Persuasion is Austen with a modern twist. This design is the perfect gift for those avid readers of Austen who love quirky, colorful artworks.

Description: Make Independent Thinking Great Again! Bold statement for critical thinkers, logical minds, and independent individuals who value reason and original thought over groupthink. Perfect shirt for free thinkers who think for themselves.

Description: If you don't stand for something, you'll fall for everything.

Description: The Arithmetician design would make an awesome gift for anyone who loves Math, Arithmetic, Solving, Mathematics. Ideal for any Arithmetician lover. Celebrate your success with these cute Arithmetician apparel. Spread happiness with others and your Family! Arithmetician themed graphic design is a great outfit or clothes for mom, dad, adults, men, and women. Design gifts for all who love Arithmetician. Suits to wear at Birthday Party, Mother's Day, Father's Day, or Thanksgiving Day!

Description: Grab this funny Get Real Be Rational Pi Imaginary Number I Shirt as a gift for your math lover son, daughter, girl- or boyfriend, dad, mom for Pi Day 2023 or Birthday! Wear this cute 314 Math Pie outfit for men, women, kids and have a happy Pi Day!

Description: Facts over feelings. Clear checklist design that puts logic and truth first. Perfect shirt for critical thinkers, rational minds, debaters, and anyone who values evidence and reason above emotions in discussions.

Description: Go Ahead, Think It Over.

Description: Celebrate logic, reason, and science with this clever and bold design that says it all: “Your inability to grasp science is not a valid argument against it.” Perfect for anyone who believes facts matter, this design is made for science lovers, teachers, skeptics, and rational thinkers who appreciate a sharp wit and intelligent humor. Whether you’re in the lab, classroom, or scrolling through debates online, this quote speaks volumes — smartly and sarcastically.

Description: thinking works , try it .

Description: In Galt We Trust

Description: Be Rational Get Real Imaginary Math

Description: Show the world how smart you are! Proudly display the SMART logo to show your support for the cause of ridding the world of stupidity!

Description: Empowering purple ribbon design for those fighting neuropathy. A bold and uplifting message for awareness warriors and advocates with unstoppable strength.

Description: A simple design for Myers Briggs INTJ with the phrase “INTJ Rational Not Emotionless”

Description: Funny Be Rational Get Real Math Tee Teacher Pi Day Gift is perfect for those who loves Pi and math. If you are looking for a funny pi day gift to celebrate Pie Day 14th March this design is perfect for you.

Description: Religion being the opiate of the masses.

Description: For freethinkers.

Description: If you have a snarky, sarcastic, clever, or witty sense of humor, this funny design makes the perfect gift

Description: Funny March 14 Pi Day design perfect for math lovers, math geeks, math nerds, math teachers, math lovers, or math wizards. Wear the math design on pi day for pie lovers as funny math gift.

Description: Your feelings are valid

Description: Prices adjust, choices shift, and outcomes appear without a central script. Somewhere in the background, incentives guide the flow, turning everyday transactions into a quiet demonstration of how systems organize themselves.

Description: Bold and witty, this “Go Fact Yourself” design is perfect for fact checkers, science fans, skeptics, teachers, and lovers of truth and logic. Clean, modern typography pops on dark shirts, ideal for t-shirts, hoodies, stickers, and more. Show your passion for facts, evidence, and smart humor – a great gift for critical thinkers and debate lovers.

Description: Pi is so irrational!

Description: Vintage Evolution skull ape monkey

Description: Let's be rational....no, you get real! Who can end the eternal argument between rational and irrational numbers?

Description: For all the realists out there

Description: Text-based, mainly colored in white plus black inside pattern attractive design.

Description: Let's be rational....no, you get real! Who can end the eternal argument between rational and irrational numbers?

Description: A clever reminder for every analyst: just because it’s correlated doesn’t mean it’s caused! Ideal for stats lovers and science geeks.

Description: When you learn and observe science, you learn how God created our world. Study science!

Description: Words of Wisdom

Description: A powerful call for reason and independent thought in the modern world. This bold design champions intellectual freedom and mindful inquiry. Makes a great gift for philosophers, teachers, and skeptics.