It is always important to know when something has reached its end. Closing circles, shutting doors, finishing chapters, it doesn't matter what we call it; what matters is to leave in the past those moments in life that are over.
An enemy always represents a weakness. This might be fear of physical pain, but it could also be a premature sense of victory or the desire to abandon the fight because it is no longer worthwhile.
No fairer destiny could be allotted to any physical theory than that it should of itself point out the way to the introduction of a more comprehensive theory, in which it lives on as a limiting case.
To be honest, to be kind-to earn a little and to spend a little less, to make upon the whole a family happier for his presence, to renounce when that shall be necessary and not be embittered, to keep a few friends but these without capitulation-above all, on the same grim condition to keep friends with himself-here is a task for all that a man has of fortitude and delicacy.
Love does not ask many questions, because with thinking comes fear. This might be the fear of being scorned, of being rejected, or of breaking the spell. However ridiculous this may seem, that is how it is. This is why one does not ask, one acts.