"The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well."
"Belief consists in accepting the affirmations of the soul; unbelief, in denying them."
"Shallow men believe in luck or in circumstance. Strong men believe in cause and effect."
"A friend may well be reckoned the masterpiece of nature."
"When it is dark enough, you can see the stars."
"In the highest civilization, the book is still the highest delight. He who has once known its satisfactions is provided with a resource against calamity."