The value of life lies not in the length of days，but in the use we make of them.
生命的价值不在于能活多少天，而在于我们如何使用这些日子。
译文：志向不坚定的人，智慧就得不到充分的发挥，说话不守信用的人做事就很难获得成功。赏析：志向不坚定，做事就会摇摆不定，就会半途而废，不守信用就很难得到别人的信任，将无法在社会上立足。
If you don't give up, you still have a chance. Giving up is the greatest failure.
It's not about how bad you want it. It's about how hard you're willing to work for it.
理解的提高有两个目标：首先，我们自己的知识增长；其次，使我们能够将这些知识传递给他人。