We all of us live upon the past, and through the past we are destroyed.

Children, love one another, and if that is not possible-at least try to put up with one another.

Nature! We live in her midst and know her not. She is incessantly speaking to us, but betrays not her secret. We constantly act upon her, and yet have no power over her. Variant: NATURE! We are surrounded and embraced by her: powerless to separate ourselves from her, and powerless to penetrate beyond her.

Sceptics are yet the most credulous.

To become aware in time when young of the advantages of age; to maintain the advantages of youth in old age: both are pure fortune.

Dream no small dreams for they have no power to move the hearts of men.

Piety is not a goal but a means to attain through the purest peace of mind the highest culture.