The man with the greatest soul will always face the greatest war with the low minded person.

It is easier to denature plutonium than to denature the evil spirit of man.

... one does people the best service by giving them some elevating work to do and thus indirectly elevating them.

The place of the expert is on tap not on top.

My scientific work is motivated by an irresistible longing to understand the secrets of nature not by other feelings.

You do not really understand something unless you can explain it to your grandmother.

All our thinking is of this nature, a free play with concepts.