You may have to fight a battle more than once to win it.
If you're not failing, you're not pushing hard enough.
我们用来探测系外行星的工具在不断进化,突破了我们认为可能的界限。
The only phrase I've ever disliked is, 'Why, we've always done it that way.' I always tell young people, 'Go ahead and do it. You can always apologize later.'