Rationalism Baseball T-Shirts

Description: You don’t need to be a square just because you value critical thinking, man! It’s good to keep an open mind, but not so open that your brain falls out.

Description: "Show me ANY religious claim supported by ANY evidence that stands up to ANY scrutiny. I'll wait." Great for snarky Atheists, curmudgeonly skeptics, or the people who insist that science is a religion while their own religion is actually no such thing but rather a "relationship".

Description: The Flying Spaghetti Monster FSM is the Lord and savior of all the true followers of Pastafarianism. This design can be suitable for atheists, agnostics and non religious free-thinkers. Pastafarianism is a parody religion however a legally registered religion in the United States. If you love bashing organised religions and their evils, you will love this design suitable for skeptics, humanists and anti-religious person.

Description: You don’t need to be a square just because you value critical thinking, man! It’s good to keep an open mind, but not so open that your brain falls out.

Description: Rene Descartes ASCII art portrait. Ideal gift for rationalism philosophy fans

Description: Ulm School (HfG Ulm)

Description: A tongue-in-cheek atheist pun that plays on the “non prophet” joke for fans of secular and skeptic humor.

Description: CruciFICTION, not crucifixion.

Description: Every now and then I get the urge for a good Hitchslap. It's too bad there'll never be a new one.

Description: critical thinking skills wish i lacked yall seem so happy overthinker sarcasm introvert philosophy logic

Description: critical thinking skills wish i lacked yall seem so happy overthinker sarcasm introvert philosophy logic

Description: The Flying Spaghetti Monster FSM is the Lord and savior of all the true followers of Pastafarianism. This design can be suitable for atheists, agnostics and non religious free-thinkers. Pastafarianism is a parody religion however a legally registered religion in the United States. If you love bashing organised religions and their evils, you will love this design suitable for skeptics, humanists and anti-religious person.

Description: You don’t need to be a square just because you value critical thinking, man! It’s good to keep an open mind, but not so open that your brain falls out.

Description: My, my, my reason hits me so hard. Makes me say, YOUR FEELINGS ARE IRRELEVANT!!!

Description: Show your love for science in your Little Heathens Unite “Let Us Pause for a Moment of Science - Starstruck” t-shirt.

Description: Baruch Spinoza, born Benedito Espinosa was Dutch philosopher of Sephardi/Portuguese origin. Original design based of his famous portrait. Image formed by lines with variable thickness. Available on t shirts, mugs, stickers and home decor.

Description: The Flying Spaghetti Monster FSM is the Lord and savior of all the true followers of Pastafarianism. This design can be suitable for atheists, agnostics and non religious free-thinkers. Pastafarianism is a parody religion however a legally registered religion in the United States. If you love bashing organised religions and their evils, you will love this design suitable for skeptics, humanists and anti-religious person.

Description: Nothing has changed on the science being real front. Nothing at all.

Description: The Flying Spaghetti Monster FSM is the Lord and savior of all the true followers of Pastafarianism. This design can be suitable for atheists, agnostics and non religious free-thinkers. Pastafarianism is a parody religion however a legally registered religion in the United States. If you love bashing organised religions and their evils, you will love this design suitable for skeptics, humanists and anti-religious person.

Description: Rene Descartes, a French philosopher and mathematician, is regarded as the Father of Modern Philosophy. This design honors his influential contributions to rational thought.

Description: Na, na, na, na, na - na, na - na, na - Descartes! Na, na, na, na, na - na, na - na, na - Descartes! Na, na, na, na, na - na, na - na, na - Descartes! You CAN touch this cool, funny MC Hammer / Rene Descartes design by buying it today!

Description: Roko's Basilisk design

Description: Immanuel Kant // Kant Touch This - Humorous Philosophy Design

Description: Quote from Bertrand Russell about fear and the herd

Description: Make a bold statement with this thought-provoking design that challenges traditional perspectives on belief systems. Perfect for free thinkers and skeptics, this piece encourages critical questioning and sparks important conversations about societal norms.

Description: Baruch Spinoza - Blue Abstract Art