If you plan on being anything less than you are capable of being, you will probably be unhappy all the days of your life.
你的空间无法扩展是因为我。
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.
复杂性不仅仅是系统中组件的数量,而是它们相互作用的性质。