Real pain can alone cure us of imaginary ills. We feel a thousand miseries till we are lucky enough to feel misery. – Samuel Taylor Coleridge

The keenest sorrow is to recognize ourselves as the sole cause of all our adversities. – Sophocles

Would you touch a nettle without being stung by it? take hold of it stoutly. Do the same to other annoyances, and hardly will any thing annoy you. – Augustus William Hare and Julius Charles Hare, Guesses at Truth, by Two Brothers