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.
I strongly believe that fundamental science cannot be driven by instructional, industrial and government or military pressures.
A man who dares to waste one hour of time has not discovered the value of life.
Never mistake motion for action.
He who opens a school door, closes a prison.
Everyone you meet always asks if you have a career, are married, or own a house as if life was some kind of grocery list. But no one ever asks you if you are happy.
Education consists mainly of what we have unlearned.
That which can be asserted without evidence, can be dismissed without evidence.
The intuitive mind is a sacred gift – and the rational mind is a faithful servant. – We have created a society that honors the servant – and has forgotten the gift.
Every cause produces more than one effect.