"We must allow ourselves to think, we must dare to think, even though we fail. It is in the nature of things that we always fail, because we suddenly find it impossible to order our thoughts, because the process of thinking requires us to consider every thought there is, every possible thought. Fundamentally we have always failed, like all the others, whoever they were, even the greatest minds. At some point, they suddenly failed and their system collapsed, as is proved by their writings, which we admire because they venture farthest into failure. To think is to fail, I thought."
— Thomas Bernhard (Extinction)
"As long as you live, you will be subject to change, whether you will it or not - now glad, now sorrowful; now pleased, now displeased; now devout, now undevout; now vigorous, now slothful; now gloomy, now merry. But a wise man who is well taught in spiritual labor stands unshaken in all such things, and heeds little what he feels, or from what side the wind of instability blows."
— Thomas à Kempis (The Imitation of Christ )