Poetry must be as new as foam and as old as the rock.

Where there is no vision a people perish.

Treat your friend as a spectacle.

Nature has her own best mode of doing each thing, and she has somewhere told it plainly, if we will keep our eyes and ears open. If not, she will not be slow in undeceiving us, when we prefer our own way to hers.

This time, like all times, is a very good one, if we but know what to do with it.

All necessary truth is its own evidence.

It is frivolous to fix pedantically the date of particular inventions. They have all been invented over and over fifty times. Man is the arch machine, of which all these shifts drawn from himself are toy models. He helps himself on each emergency by copying or duplicating his own structure, just so far as then need is.