Man must suffer to be wise.
Rashness belongs to youth; prudence to old age.
Friendship improves happiness and abates misery, by the doubling of our joy and the dividing of our grief.
History is the witness that testifies to the passing of time.
Kindness is produced by kindness.
Nothing so cements and holds together all the parts of a society as faith or credit, which can never be kept up unless men are under some force or necessity of honestly paying what they owe to one another.