学之广在於不倦，不倦在於固志。
释义：学习广博的知识，需要孜孜不倦地学习；学习能够坚持不懈，就有了坚定的志向。
化学是一门研究物质性质及其变化的科学。
A writer must be stubborn, must have a vocation of sacrifice, and must accept that literature is a very cruel mistress.
书籍是镜子：你只能从中看到你内心已有的东西。
Problem-solving often requires restructuring one's mental representation of the situation.