解释：要紧紧抓住时机不能错过，错过了也不能延误太久。

社会学的想象力使我们能够把握历史和传记以及两者在社会中的关系。

The aim of art is not to represent the outward appearance of things, but their inward significance.

In computer science, we often deal with problems that are too complex to solve directly, so we break them down into smaller, more manageable parts.

利润和可持续性并不是敌人，而是长期成功的合作伙伴。