We must always be learning, because the field of computing is always evolving.

The power of literature lies in its ability to connect us to the universal human experience.

Patience and persistence are the unsung heroes of scientific discovery.

解释：影子的弯曲与正直是随身体而变化的，根源不在影子自身；自己的屈曲与伸直是随外物而变化的，而不在于个人的主观意志。这就是保持谦退才能使自己处世为先的道理。