The concept of NP-completeness has provided a powerful tool for understanding the complexity of problems.
Chainsaws don't destroy forests—short-term thinking does.
对死亡的回避是不健康和异常的,它使生命第二阶段失去目标。
物体的加速度与所受的合外力成正比,与物体的质量成反比。加速度的方向与合力的方向相同。
The best architecture is the one that doesn’t need explanation.