“Everything turns out to be valuable that one does for one’s self without thought of profit.”

“Don't be seduced into thinking that that which does not make a profit is without value.”

“That’s what existence means: draining one’s own self dry without the sense of thirst.”

“One of the tests for positive thinking, for constructive thinking, is to test one’s idle moments. At those times, is one’s mind turning over negative critical thoughts; fighting battles that have been won or lost; rehashing senseless arguments? If so, then one is out of tune. But if one is thinking how to improve a situation or a procedure, how to gain a worthwhile objective, then one is on the constructive side of life.”

“Writing: Turning one's worst moments into profit.”

“The great enemy of clear language is insincerity. When there is a gap between one’s real and one’s declared aims, one turns as it were instinctively to long words and exhausted idioms, like a cuttlefish spurting out ink.”