Even while a thing is in the act of coming into existence, some part of it has already ceased to be.
Every man's life lies within the present; for the past is spent and done with, and the future is uncertain.
There is no misfortune, but to bear it nobly is good fortune.
Everything that happens, happens as it should.
Nothing that goes on in anyone else's mind can harm you.
In the same degree in which a man's mind is nearer to freedom from all passion, in the same degree also is it nearer to strength.