在这个世界上，我该爱的人是我自己。

Every challenge in agriculture is an opportunity to innovate.

Not necessarily your mother, or indeed mine, but, as it were, the ideal mother, somebody who doesn't care about your achievements. Unfortunately, most people are not our mothers. Most people make a strict correlation between how much time, and if you like, love -- not romantic love, though that may be something -- but love in general, respect --they are willing to accord us, that will be strictly defined by our position in the social hierarchy.

我现在承担了一项严肃的任务，恐怕这个任务超出了任何人的能力范围。

通过行动来验证你的思想。

我们必须记住过去，才能更好地面对未来。

心理学唯一有效的数据是可观察的行为。