Curiosity is one of the permanent and certain characteristicks of a vigorous intellect. Every advance into knowledge opens new prospects, and produces new incitements to farther progress.
There are few ways in which a man can be more innocently employed than in getting money.
Marriage has many pains, but celibacy has no pleasures.
Fyodor Dostoevsky·1866Pain and suffering are always inevitable for a large intelligence and a deep heart. The really great men must, I think, have great sadness on Earth.
Henry David Thoreau·1880Our sadness is not sad, but our cheap joys.
Adam Smith·1759How selfish soever man may be supposed, there are evidently some principles in his nature, which interest him in the fortune of others, and render their happiness necessary to him, though he derives nothing from it except the pleasure of seeing it.
