The true power of mathematics is not in its complexity, but in its simplicity and elegance.
数学的真正力量不在于它的复杂性,而在于它的简洁和优雅。
关系模型的力量在于其简单性以及以直接方式表示复杂关系的能力。
If you start out by promising what you don't even have yet, you'll lose your desire to work toward getting it.