To owe an obligation to a worthy friend is a happiness, and can be no disparagement.
Pleasure and pain, though directly opposite are contrived to be constant companions.
God, Nature, the wise, the world, preach man, exhort him both by word and deed to the study of himself.
The true science and study of mankind is man.
He who receives a benefit should never forget it; he who bestows should never remember it.
Riches should be admitted into our houses, but not into our hearts; we may take them into our possession, but not into our affections.