Rational Hoodies

Infinity symbol made of numbers and math stuff!

For all the realists out there

Be Rational Get Real Imaginary Math

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

Think T-Shirt - for all intellectuals, thinkers, and smart people out there.

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!

For freethinkers.

To understand is to be free.

To understand is to be free.

Human values come from humans, not imaginary beings. Tired of religious people trying to say not believing makes you immoral when they use religion to justify their moral failings.

Designed for curious minds. Embrace the wisdom of Socrates and spark intriguing discussions!

Pi is so irrational!

Absurdism Rocks the World

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

If your religion teaches not to question then your religion is hiding something from you. Great gift idea for the atheist or rational thinker in your life.

This is a great design to grab for a math teacher or math lover, whether he is your dad or brother or someone you respect.

The other national deficit

Font design

QED or Quod Erat Demonstrandum, which loosely translated means "that which was to be demonstrated". It is usually placed at the end of a mathematical proof to indicate that the proof is complete.

For reasonable people tired of irrational arguments and annoying rude behavior.

doctrine that we live in an irrational universe