To have a positive religion is not necessary. To be in harmony with yourself and the universe is what counts, and this is possible without positive and specific formulation in words.

Every offense is avenged on earth.

Know'st thou yesterday, its aim and reason? Work'st thou will today for worthier things? Then calmly wait the morrow's hidden season, And fear thou not, what hap soe'er it brings

I wish the crowd to feel itself well treated, Especially since it lives and lets me live.

One cannot always be a hero, but one can always be a man.

The credit of advancing science has always been due to individuals and never to the age.

As for solitude, I cannot understand how certain people seek to lay claim to intellectual stature, nobility of soul and strength of character, yet have not the slightest feeling for seclusion; for solitude, I maintain, when joined with a quiet contemplation of nature, a serene and conscious faith in creation and the Creator, and a few vexations from outside is the only school for a mind of lofty endowment.