计算复杂性的本质是理解什么可以被有效地计算的极限。
The essence of computational complexity is to understand the limits of what can be computed efficiently.
【释义】知道满足的人常常快乐，品德高尚的人能够承载万物。
"Books are the windows to other possibilities."
Markets alone won't solve all development challenges - we need smart interventions too.
Collaboration is key—no single organization can solve the world’s environmental challenges alone.