The intuitive mind is a sacred gift And the rational mind is a faithful servant.
Education is the ability to listen to almost anything without losing your temper or your self-confidence.
Natural science does not simply describe and explain nature: it is part of the interplay between us and nature.
He who opens a school door, closes a prison.
The only true wisdom is in knowing you know nothing.
The smallest minority on earth is the individual. Those who deny individual rights cannot claim to be defenders of minorities.
During times of universal deceit, telling the truth becomes a revolutionary act.
Somewhere, something incredible is waiting to be known.
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.
All real philosophers have been artists in the realm of concepts.