Happy is the hearing man; unhappy the speaking man.

For all symbols are fluxional; all language is vehicular and transitive, and is good, as ferries and horses are, for conveyance, not as farms and houses are, for homestead.

We must hold a man amenable to reason for the choice of his daily craft or profession. It is not an excuse any longer for his deeds that they are the custom of his trade. What business has he with an evil trade?

The history of persecution is a history of endeavors to cheat nature, to make water run up hill, to twist a rope of sand.

I think no virtue goes with size.

Astronomy taught us our insignificance in Nature.

Everything in Nature contains all the powers of Nature. Everything is made of one hidden stuff.