数学家研究纯数学不是因为它有用;他研究它是因为他喜欢它,他喜欢它是因为它美丽。
The truth is you don't know what is going to happen tomorrow. Life is a crazy ride, and nothing is guaranteed.
Every barrel of oil we produce comes with a commitment to do it better than before.
可持续性是现代农业的基石。没有它,我们可能会失去我们所建立的一切。