The past is a shadow that follows us, always present, always influencing.
解读：这是人生规划的关键三连问，盘点现有资源、明确目标，进而知晓需割舍的东西，合理规划人生走向，避免盲目奔忙。
长期而言，最严酷的大规模杀伤性武器是愚蠢。
我们今天关于海洋资源的每个决定都将在未来几十年产生影响。
Always stay true to yourself and your passions.
Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.