We constantly change the world, even by our inaction. Therefore, let us change it responsibly.
Who pleasure gives, Shall joy receive
To the generous mind the heaviest debt is that of gratitude, when it is not in our power to repay it.
Speak ill of no man, but speak all the good you know of everybody.
Wise men learn by others' harms, fools scarcely by their own.
Necessity never made a good bargain.