There are two tragedies in life. One is to lose your heart's desire. The other is to gain it.
Some men see things as they are and ask why. Others dream of things that never were and ask why not.
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?
Progress is impossible without change, and those who cannot change their minds cannot change anything.