Mental processes are tools for living, and their worth is in their use.
我不在乎你是黑人、白人、异性恋、双性恋、男同、女同、高、矮、胖、瘦、富有或贫穷。如果你对我好，我也会对你好。就这么简单。
它是大地的泪点，使她的微笑保持着青春不谢。
Every breakthrough starts with a question, and every question is a step toward the unknown.
The key to progress in science is persistence and an open mind.