With knowledge grows doubt.

A joy shared is a joy doubled.

The most damaging prejudice consists of banning any kind of investigation of nature.

If you are convinced of a matter, you must take sides or you don't deserve to succeed.

True art can only spring from the intimate linking of the serious and the playful.

Kindness is the golden thread that holds society together.

Voluntary dependence is the wonderful form of existence, and how could that be possible without love?