“Both optimists and pessimists contribute to our society. The optimist invents the airplane and the pessimist the parachute.”
G. B. Stern
“An optimist is a person who sees a green light everywhere, while a pessimist sees only the red stoplight. . . The truly wise person is colorblind.”
Albert Schweitzer
“The man who is a pessimist before forty-eight knows too much; if he is an optimist after it he knows too little”
Mark Twain
“A pessimist only sees the dark side of the clouds, and mopes; a philosopher sees both sides and shrugs; an optimist doesn't see the clouds at all--he's walking on them.”
Leonard L. Levinson
“Pessimism leads to weakness, optimism to power”
William James
“The optimist sees the rose and not its thorns; the pessimist stares at the thorns, oblivious to the rose”
Kahlil Gibran
“An optimist stays up until midnight to see the new year in. A pessimist stays up to make sure the old year leaves.”
Bill Vaughn
