The beginning is the most important part of the work.
我从最底层爬上来,现在我在这儿。
丙型肝炎的挑战不仅在于找到病毒,还在于理解它是如何逃避免疫系统的。
人生最难学的是该过哪座桥,该烧哪座桥。
The true measure of success is how much you've helped others succeed.