“The test of all beliefs is their practical effect in life. It be true that optimism compels the world forward, and pessimism retards it, them it is dangerous to propagate a pessimistic philosophy.”
Helen Keller (verified)
“I have no dress except the one I wear. If you are going to be kind enough to give me one [a wedding dress], please let it be practical and dark, so that I can put it on afterwards to go to the laboratory.”
— Marie Curie (verified, secondary source)“The cat in gloves catches no mice.”
— Benjamin Franklin (verified)