No great improvements in the lot of mankind are possible until a great change takes place in the fundamental constitution of their modes of thought.
Do something every day that you don't want to do; this is the golden rule for acquiring the habit of doing your duty without pain.
Three o'clock is always too late or too early for anything you want to do.
I am not sincere, even when I say I am not.
It is not enough to succeed. Others must fail.
My pessimism extends to the point of even suspecting the sincerity of the pessimists.
It's very hard to take yourself too seriously when you look at the world from outer space.