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.
Lovers may be and indeed generally are enemies, but they never can be friends, because there must always be a spice of jealousy and a something of Self in all their speculations.
Accept disgrace willingly... Accept being unimportant... Surrender yourself humbly; then you can be trusted to care for all things. Love the world as your own self; then you can truly care for all things.
In fact the whole passion ordinarily termed love (and heaven help me if I can think of any other term to apply to it) is of such exceeding triviality that I see nothing that I think comparable with it.
I am in the night. There is a being who has gone away and carried the heavens with her. Oh! to be laid side by side in the same tomb, hand clasped in hand, and from time to time, in the darkness, to caress a finger gently, that would suffice for my eternity.
You ought to love all mankind; nay, every individual of mankind. You ought not to love the individuals of your domestic circles less, but to love those who exist beyond it more.
One can promise actions, but not feelings, for the latter are involuntary. He who promises to love forever or hate forever or be forever faithful to someone is promising something that is not in his power.