It is not ignorance but knowledge which is the mother of wonder.
Happiness is itself a kind of gratitude.
When a man wantonly destroys one of the works of man we call him a vandal. When he destroys one of the works of god we call him a sportsman.
If people destroy something replaceable made by mankind, they are called vandals; if they destroy something irreplaceable made by God, they are called developers.
If we do not permit the earth to produce beauty and joy, it will in the end not produce food, either.
