A gentleman is one who puts more into the world than he takes out.
Patriotism is, fundamentally, a conviction that a particular country is the best in the world because you were born in it…
Progress is impossible without change, and those who cannot change their minds cannot change anything.
A life spent making mistakes is not only more honourable, but more useful than a life spent doing nothing.
The moment we want to believe something, we suddenly see all the arguments for it, and become blind to the arguments against it.
Some men see things as they are and ask why. Others dream of things that never were and ask why not.