One of the most important things that I did to turn my life around was to realize and to accept that from this minute, that's all we have. Everything that happened behind us we cannot change so you might as well look to the future.
“Friendship is inexplicable, it should not be explained if one doesn't want to kill it.”
“Pure mathematics is on the whole distinctly more useful than applied. For what is useful above all is technique, and mathematical technique is taught mainly through pure mathematics.”