Optimism means expecting the best, but confidence means knowing how you will handle the worst. Never make a move if you are merely optimistic.

• 乐观主义意味着期望最好的情况发生。自信心意味着知道一旦最坏的情况发生你会怎样处理。如果你只是乐观而已,千万不要轻举妄动。