Life is very short, and there's no time for fussing and fighting, my friend.

渔业技术应首先服务于保护，其次才是商业。

Psychology should be the science of mental life, both of its phenomena and of their conditions.

我只是一个想要有所作为的孩子。

Behavior is determined by the current stimulus situation and past reinforcement history.

有时候生活会给你当头一棒。不要失去信心。

幸福来自内心，而不是物质的东西。