Life is too short for mean anxieties.

I go at what I have to do as if there were nothing else in the world for me to do.

If "ifs" and "ands" were pots and pans, there'd be no work for tinkers' hands

Have charity; have patience; have mercy. Never bring a human being, however silly, ignorant, or weak--above all, any little child--to shame and confusion of face. Never by petulance, by suspicion, by ridicule, even by selfish and silly haste--never, above all, by indulging in the devilish pleasure of a sneer--crush what is finest and rouse up what is coarsest in the heart of any fellow-creature.

I can conceive few human states more enviable than that of the man to whom, panting in the foul laboratory, or watching for his life under the tropic forest, Isis shall for a moment lift her sacred veil, and show him, once and for ever, the thing he dreamed not of; some law, or even mere hint of a law, explaining one fact; but explaining with it a thousand more, connecting them all with each other and with the mighty whole, till order and meaning shoots through some old Chaos of scattered observations.

These glorious things-words-are man's right alone...Without words we should know no more of each other's hearts and thoughts than the dog knows of his fellow dog....for, if you will consider, you always think to yourself in words, though you do not speak them aloud; and without them all our thoughts would be mere blind longings, feelings which we could not understand ourselves.

Look at the bow in the cloud, in the very rain itself. That is a sign that the sun, though you cannot see it, is shining still -- that up above beyond the cloud is still sunlight and warmth and cloudless blue sky.