Success is not final, failure is not fatal: it is the courage to continue that counts.

God could not be everywhere, and therefore he made mothers.

不存在所谓的质量问题。只有问题，而这些问题的解决方案可能涉及质量考虑。

I always aim to create films that are both entertaining and thought-provoking.

Always be prepared. The more you know, the less you carry.

PID控制器的本质在于它能够根据系统的过去和现在状态预测其未来行为。

The deepest theorems often arise from the simplest observations.