We are all full of weakness and errors; let us mutually pardon each other our follies - it is the first law of nature.

It is absolutely necessary, for the peace and safety of mankind, that some of earth's dark, dead corners and unplumbed depths be left alone; lest sleeping abnormalities wake to resurgent life, and blasphemously surviving nightmares squirm and splash out of their black lairs to newer and wider conquests.

Seeing ourselves as others see us would probably confirm our worst suspicions about them.

Everyone is a prisoner of his own experiences. No one can eliminate prejudices - just recognize them.

Surely a man needs a closed place wherein he may strike root and, like the seed, become. But also he needs the great Milky Way above him and the vast sea spaces, though neither stars nor ocean serve his daily needs.

It seems to me that man is made to act rather than to know: the principles of things escape our most persevering researches.