及时采撷你的花蕾，旧时光一去不回，今天尚在微笑的花朵，明日便在风中枯萎。
Gather ye rosebuds while ye may,Old time is still a-flying,And this same flower that smiles today,Tomorrow will be dying.
Enterprises must have the courage to take responsibility and play a leading role in ensuring national energy security.
The best way to learn is by doing.
The only thing that matters is how you feel about yourself.
译文：势单力薄容易受到损害，人多势众则不容易被摧毁。
Every moment of the world is complete in itself.
States are rational actors that seek to maximize their relative power in order to ensure their survival in a competitive international system.