"History is not just about the past; it's about how the past shapes the present."
历史不仅仅是关于过去;它是关于过去如何塑造现在。
无论你变得多好,你总能变得更好,这就是最令人兴奋的部分。
The best thing about success is being able to share it.
Every organism is in a struggle for existence.
Both incentives and punishments elicit powerful responses.