A man who dares to waste one hour of time has not discovered the value of life.
Rationality attracts conscientious humans, whereas mysticism attracts fools.
Time and space are modes by which we think and not conditions in which we live.
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
If I have seen further it is by standing on the shoulders of Giants.
Science and religion are not at odds. Science is simply too young to understand.
The only true wisdom is in knowing you know nothing.
Logic is like the sword–those who appeal to it shall perish by it.
If one devalues rationality, the world tends to fall apart.
An optimist believes we live in the best possible of worlds.- A pessimist fears that this is true.