Pearls of wisdom from people I met or those whom I admire in spite of temporal distance:
You will find your people, I know you will, because I found mine. Cormac McCarthy, 2019.
For us, there is only the trying. The rest is not our business. T.S. Eliot, 1940.
It is better to solve one problem five different ways, than to solve five problems one way. George Pólya, 1968?
If there is one thing in mathematics that fascinates me more than anything else (and doubtless always has), it is neither number nor size, but always form. Alexander Grothendieck, 1986.
In the knowable realm, the form of the good is [...] to be seen, and it is reached only with difficulty. Once one has seen it, however, one must conclude that it is the cause of all that is correct and beautiful in anything, that it produces both light and its source in the visible realm, and that in the intelligible realm it controls and provides truth and understanding, so that anyone who is to act sensibly in private or public must see it. Plato, centuries ago.
All things excellent are as difficult as they are rare. Spinoza, around 1665.