There is only one religion, though there are a hundred versions of it.
No man who is occupied in doing a very difficult thing, and doing it very well, ever loses his self-respect.
Beauty is all very well at first sight; but who ever looks at it when it has been in the house three days?
Some men see things as they are and ask why. Others dream of things that never were and ask why not.
The power of accurate observation is frequently called cynicism by those who have not got it.
Progress is impossible without change, and those who cannot change their minds cannot change anything.