Vain

"Live for yourself and you will live in vain; Live for others, and you will live again."

"Vanity and pride are different things, though the words are often used synonymously. A person may be proud without being vain. Pride relates more to our opinion of ourselves, vanity to what we would have others think of us."

"Believe, when you are most unhappy, that there is something for you to do in the world. So long as you can sweeten another's pain, life is not in vain."

"All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge."

"A mighty pain to love it is,And 't is a pain that pain to miss;But of all pains, the greatest painIt is to love, but love in vain."

"Man has much power of discourse which for the most part is vain and false; animals have but little, but it is useful and true, and a small truth is better than a great lie."

"How vain it is to sit down to write when you have not stood up to live."