To act intelligently in human affairs is only possible if an attempt is made to understand the thoughts, motives, and apprehension of one's opponent so fully that one can see the world through their eyes.

Good acts are like good poems. One may easily get their drift, but they are not rationally understood.

Understanding physics is child's play when compared to understanding child's play.

...and knowledge is one of the finest attributes of man - though often it is most loudly voiced by those who strive for it the least.

A man has to work so hard so that something of his personality stays alive. A tomcat has it so easy, he has only to spray and his presence is there for years on rainy days.

Problems cannot be solved by thinking within the framework in which the problems were created.

In music I do not look for logic. I am quite intuitive on the whole and know no theories. I never like a work if I cannot intuitively grasp its inner unity (architecture).