Argus Filch

“I have known both of you all your lives, have carried your Daddy in my arms and on my shoulders, kissed and spanked him and watched him learn to walk. I don't know if you've known anybody from that far back; if you've loved anybody that long, first as an infant, then as a child, then as a man, you gain a strange perspective on time and human pain and effort. Other people cannot see what I see whenever I look into your father's face, for behind your father's face as it is today are all those other faces which were his. Let him laugh and I see a cellar your father does not remember and a house he does not remember and I hear in his present laughter his laughter as a child. Let him curse and I remember him falling down the cellar steps, and howling, and I remember, with pain, his tears, which my hand or your grandmother's so easily wiped away. But no one's hand can wipe away those tears he sheds invisibly today, which one hears in his laughter and in his speech and in his songs. I know what the world has done to my brother and how narrowly he has survived it. And I know, which is much worse, and this is the crime of which I accuse my country and my countrymen, and for which neither I nor time nor history will ever forgive them, that they have destroyed and are destroying hundreds of thousands of lives and do not know it and do not want to know it.”
― James Baldwin, The Fire Next Time

“He ransacked his memory like a thief going through another man's billfold.”
― Kurt Vonnegut, The Sirens of Titan

“In fact, most of these comrades who I gauged to be more brilliant than I have gone on to become distinguished mathematicians. Still, from the perspective of thirty or thirty-five years, I can state that their imprint upon the mathematics of our time has not been very profound. They've all done things, often beautiful things, in a context that was already set out before them, which they had no inclination to disturb. Without being aware of it, they've remained prisoners of those invisible and despotic circles which delimit the universe of a certain milieu in a given era. To have broken these bounds they would have had to rediscover in themselves that capability which was their birthright, as it was mine: the capacity to be alone.”
― Alexander Grothendieck

“Outsiders sometimes have an impression that mathematics consists of applying more and more powerful tools to dig deeper and deeper into the unknown, like tunnelers blasting through the rock with ever more powerful explosives. And that's one way to do it. But Grothendieck, who remade much of pure mathematics in his own image in the 1960's and 70's, had a different view: "The unknown thing to be known appeared to me as some stretch of earth or hard marl, resisting penetration...the sea advances insensibly in silence, nothing seems to happen, nothing moves, the water is so far off you hardly hear it...yet it finally surrounds the resistant substance."

The unknown is a stone in the sea, which obstructs our progress. We can try to pack dynamite in the crevices of rock, detonate it, and repeat until the rock breaks apart, as Buffon did with his complicated computations in calculus. Or you can take a more contemplative approach, allowing your level of understanding gradually and gently to rise, until after a time what appeared as an obstacle is overtopped by the calm water, and is gone. Mathematics as currently practiced is a delicate interplay between monastic contemplation and blowing stuff up with dynamite.”
― Jordan Ellenberg, How Not to Be Wrong: The Power of Mathematical Thinking