All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.

Every problem in mathematics is an opportunity to learn something new.

Every family is a haunted house in its own way.

如果你收养了一只饥饿可怜的狗，并且让它舒适顺利，它将不会咬你，这便是一个人与一只狗之间最主要的差别。