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“Any man could, if he were so inclined, be the sculptor of his own brain.”
― Santiago Ramon y Cajal, Advice for a Young Investigator

“God, but life is loneliness, despite all the opiates, despite the shrill tinsel gaiety of "parties" with no purpose, despite the false grinning faces we all wear. And when at last you find someone to whom you feel you can pour out your soul, you stop in shock at the words you utter - they are so rusty, so ugly, so meaningless and feeble from being kept in the small cramped dark inside you so long. Yes, there is joy, fulfillment and companionship - but the loneliness of the soul in its appalling self-consciousness is horrible and overpowering.”
― Sylvia Plath, The Unabridged Journals of Sylvia Plath

“What is the proper justification of a mathematician’s life? My answers will be, for the most part, such as are expected from a mathematician: I think that it is worthwhile, that there is ample justification. But I should say at once that my defense of mathematics will be a defense of myself, and that my apology is bound to be to some extent egotistical. I should not think it worth while to apologize for my subject if I regarded myself as one of its failures. Some egotism of this sort is inevitable, and I do not feel that it really needs justification. Good work is no done by "humble" men. It is one of the first duties of a professor, for example, in any subject, to exaggerate a little both the importance of his subject and his own importance in it. A man who is always asking "Is what I do worth while?" and "Am I the right person to do it?" will always be ineffective himself and a discouragement to others. He must shut his eyes a little and think a little more of his subject and himself than they deserve. This is not too difficult: it is harder not to make his subject and himself ridiculous by shutting his eyes too tightly.”
― G. H. Hardy, A Mathematician's Apology

“there is a loneliness in this world so great that you can see it in the slow movement of the hands of a clock”
― Charles Bukowski, Love Is a Dog from Hell