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

Some suggestions for you :

I maintain that the cosmic religious feeling is the strongest and noblest motive for scientific research.

God may be subtle, but he isn't plain mean.

He experiences himself, his thoughts and feeling as something separated from the rest, a kind of optical delusion of his consciousness.

Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.

Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence.

Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole nature in its beauty. Nobody is able to achieve this completely but striving for such achievement is, in itself, a part of the liberation and a foundation for inner security.

Only a life lived for others is worth living.

I am not more gifted than anybody else. I am just more curious than the average person and I will not give up a problem until I have found the proper solution.

All that is valuable in human society depends upon the opportunity for development accorded the individual.

In art, and in the higher ranges of science, there is a feeling of harmony which underlies all endeavor. There is no true greatness in art or science without that sense of harmony.

Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. That's relativity.

Why 100? If I were wrong, one would have been enough.

Make things as simple as possible, but no simpler.

Great spirits have always found violent opposition from mediocrities.