God made the world as an artist and that is why the world must learn from an artist.
Progress is impossible without change, and those who cannot change their minds cannot change anything.
The power of accurate observation is frequently called cynicism by those who have not got it.
The moment we want to believe something, we suddenly see all the arguments for it, and become blind to the arguments against it.
Beauty is all very well at first sight; but who ever looks at it when it has been in the house three days?