- "Were there none who were discontented with what they have, the world would never reach anything better."
- "The martyr sacrifices themselves entirely in vain. Or rather not in vain; for they make the selfish more selfish, the lazy more lazy, the narrow narrower."
- "The world is put back by the death of every one who has to sacrifice the development of his or her peculiar gifts to conventionality."
- "So never lose an opportunity of urging a practical beginning, however small, for it is wonderful how often in such matters the mustard-seed germinates and roots itself."
- "She said the object and color in the materials around us actually have a physical effect on us, on how we feel."
- "It may seem a strange principle to enunciate as the very first requirement in a hospital that it should do the sick no harm."
- "I think one's feelings waste themselves in words; they ought all to be distilled into actions which bring results."