Difference of opinion leads to inquiry, and inquiry to the truth.

Thomas Jefferson

Clear and independent thinkers are far rarer than "smart" or "educated".

Naval Ravikant

I believe in God, but not as one thing, not as an old man in the sky. I believe that what people call God is something in all of us.

John Lennon

Fortitude is the guard and support of the other virtues.

John Locke

There is no genius without a touch of madness.

Seneca

What we have once enjoyed deeply we can never lose. All that we love deeply becomes a part of us.

Helen Keller