If one devalues rationality, the world tends to fall apart.
You cannot conquer a free man. The most you can do is kill him.
During times of universal deceit, telling the truth becomes a revolutionary act.
All real philosophers have been artists in the realm of concepts.
Anything that gives us new knowledge gives us an opportunity to be more rational.
Space is big. You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space.
Kindness is the language which the deaf can hear and the blind can see.
Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.
A man who dares to waste one hour of time has not discovered the value of life.
The cooperative structure never encourages huge bureaucratic systems, for it knows that mammoth bureaucracies cannot be sensitive to the needs of people.