出自先秦《荀子·劝学》。定居一定要选择适当的邻里，交游一定要接近贤士。说明要加强道德修养，就应该注意周围环境。

"Illustrating a book is like giving a voice to the characters."

I'm not afraid to take a stand. Everybody come take my hand. We'll walk this road together, through the storm. Whatever weather, cold or warm.

实现真正自由的唯一途径是通过自律。

预测未来的最好方法是研究过去。

对自然界的理解及其内涵不仅是巨大好奇心的来源，也是巨大成就感的来源。