The only person you should try to be better than is the person you were yesterday.
You are the artist of your own life.
Other holidays repose upon the past; Arbor Day proposes for the future.
The beauty of science is that it allows us to explore the unknown and uncover the mysteries of life.
科学的美妙之处在于它让我们能够探索未知并揭开生命的奥秘。
我不后悔任何事情，因为每一步都让我走到了这里。