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。
The challenge with hepatitis C was not just to find the virus, but to understand how it evades the immune system.
Success is a journey, not a destination.
乐观是一种可以学习的技能。一旦你学会了它，你就能在各个方面改善你的生活。