Unselfish appreciation

要是我們都那樣自私、卑賤，不從他人身上得到回報就不願意給他人快樂 (由衷的讚美)，要是我們的氣量還沒有一個酸蘋果大，那麼在生活、工作及他人交往當中絕對失敗。

If we are so contemptibly selfish that we can't radiate a little happiness and pass on a bit of honest appreciation without trying to get something out of the other person in return --- if our souls are no bigger than sour crab apples, we shall meet with the failure we so richly deserve.

Dale Carnegie <How to make people like you instantly>