数学真理是普遍而永恒的。

Change starts with a single step, but it requires persistence to reach the destination.

The tongue is like a sharp knife, killing without drawing blood. Words from a skilled person can cause greater harm than a warrior’s weapon.

编程的艺术是组织复杂性的艺术，是掌握多样性并尽可能有效地避免其混乱的艺术。

Order and simplification are the first steps toward the mastery of a subject.