"Knowledge is love and light and vision."

"As selfishness and complaint pervert and cloud the mind, so sex with its joy clears and sharpens the vision."

"Believe, when you are most unhappy, that there is something for you to do in the world. So long as you can sweeten another's pain, life is not in vain."

"A happy life consists not in the absence, but in the mastery of hardships."

"Be happy with what you have while working for what you want."

"Be of good cheer. Do not think of today's failures, but of the success that may come tomorrow."