A person may cause evil to others not only by his actions but by his inaction, and in either case he is justly accountable to them for the injury.

Far better an approximate answer to the right question, which is often vague, than an exact answer to the wrong question, which can always be made precise.

When a man wants to murder a tiger, he calls it sport; when a tiger wants to murder him he calls it ferocity.

It's a bit embarrassing to have been concerned with the human problem all one's life and find at the end that one has no more to offer by way of advice than 'Try to be a little kinder.'