I have deep faith that the principle of the universe will be beautiful and simple

Man like every other animal is by nature indolent. If nothing spurs him on, then he will hardly think, and will behave from habit like an automaton.

The highest principles for our aspirations and judgments are given to us in the Jewish-Christian religious tradition.

What a person thinks on his own without being stimulated by the thoughts and experiences of the other people is even in the best case rather paltry and monotonous.

The only mistake in life is the lesson not learned.

Wisdom is not a product of schooling but of the lifelong attempt to acquire it.

Common sense is that layer of prejudices which we acquire before we are sixteen.