Life has its ups and downs, but it certainly has its rewards.
人生有沉也有浮,但是无论怎样都确有其价值。
Nothing is impossible to a willing mind.
世上无难事,只怕有心人。
On the occasions when they have pushed to shore an unconscious human being they have much more likely done it out of curiosity or for sport, as in riding the bow waves of a ship.