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“As a well spent day brings happy sleep, so life well used brings happy death.”
― Leonardo da Vinci

“Man only likes to count his troubles; he doesn't calculate his happiness.”
― Fyodor Dostoevsky, Notes from Underground, White Nights, The Dream of a Ridiculous Man, and Selections from The House of the Dead

“Our greatest glory is not in never falling, but in rising every time we fall.”
― Oliver Goldsmith, The Citizen of the World, Or, Letters from a Chinese Philosopher, Residing in London, to His Friends in the Country, by Dr. Goldsmith

“Don't aim at success. The more you aim at it and make it a target, the more you are going to miss it. For success, like happiness, cannot be pursued; it must ensue, and it only does so as the unintended side effect of one's personal dedication to a cause greater than oneself or as the by-product of one's surrender to a person other than oneself. Happiness must happen, and the same holds for success: you have to let it happen by not caring about it. I want you to listen to what your conscience commands you to do and go on to carry it out to the best of your knowledge. Then you will live to see that in the long-run—in the long-run, I say!—success will follow you precisely because you had forgotten to think about it”
― Viktor E. Frankl, Man's Search for Meaning