Quality is not a problem; it is a solution.
个人投资者应该始终如一地作为投资者而不是投机者行事。
里氏替换原则是面向对象编程中的一个基本概念,确保派生类可以替代其基类使用,而不会改变程序的正确性。
The most important property of a program is whether it accomplishes the intention of its user.
False happiness renders men stern and proud, and that happiness is never communicated. True happiness renders them kind and sensible, and that happiness is always shared.
Imagination is more important than knowledge.