It is impossible to get anywhere without sinning against reason.

The years of searching in the dark for a truth that one feels but cannot express, the intense desire and the alternations of confidence and misgiving until one breaks through to clarity and understanding, are known only to him who has experienced them himself.

I do not believe that a moral philosophy can ever be founded on a scientific basis. … The valuation of life and all its nobler expressions can only come out of the soul’s yearning toward its own destiny. Every attempt to reduce ethics to scientific formulas must fail. Of that I am perfectly convinced.

It has often been said, and certainly not without justification, that the man of science is a poor philosopher.

If you want your children to be intelligent, read them fairy tales. If you want them to be more intelligent, read them more fairy tales.

Imagination is more important than knowledge. Imagination is the language of the soul. Pay attention to your imagination and you will discover all you need to be fulfilled.

Nationalism is the measels of mankind.