The art of living consists in knowing which impulses to obey and which must be made to obey.
When I hear somebody say 'Life is hard', I am always tempted to ask 'Compared to what?'
Regret for the things we did can be tempered by time; it is regret for the things we did not do that is inconsolable.
The greatest enemy of progress is not stagnation, but false progress.
The two words 'information' and 'communication' are often used interchangeably, but they signify quite different things. Information is giving out; communication is getting through.
Enemies, as well as lovers, come to resemble each other over a period of time.
