"The beauty of literature is that it allows us to live a thousand lives in one."
Innovation isn't about technology—it's about solving problems.
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。
There are no facts, only interpretations.
我坚信一个理论,那就是只有当你在享受乐趣时才能发挥出最佳水平。