改变的秘诀在于集中所有精力，不是与过去斗争，而是建设未来。
The secret of change is to focus all of your energy not on fighting the old, but on building the new.
The act of writing is an act of resistance against forgetting.
The deepest theorems often arise from the simplest observations.
今天我们种下的每一棵树都是留给后代的遗产。
世界是你的。
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。