The work of science is to substitute facts for appearances, and demonstrations for impressions.

I had no companions to quarrel with, nobody to assist, and nobody to thank... the evil consequence of all this was not, however, what might perhaps have been expected, that I grew up selfish or non affectionate; but that, when affection did come, it came with a violence utterly rampant and unmanageable.

Of all the things that oppress me, this sense of the evil working of nature herself -my disgust at her barbarity -clumsiness -darkness -bitter mockery of herself -is the most desolating.

It is eminently a weariable faculty, eminently delicate, and incapable of bearing fatigue; so that if we give it too many objects at a time to employ itself upon, or very grand ones for a long time together, it fails under the effort, becomes jaded, exactly as the limbs do by bodily fatigue, and incapable of answering any farther appeal till it has had rest.

See that your children be taught, not only the labors of the earth, but the loveliness of it.

All great art is the expression of man's delight in God's work, not his own.

God never imposes a duty without giving time to do it.