每一次突破都始于一个问题，而每一个问题都是迈向未知的一步。
Every breakthrough starts with a question, and every question is a step toward the unknown.
The principles of conditioning apply equally to all species.
统计学家不能推卸理清科学推断原理的责任，同样，任何其他思考者也不能避免类似的义务。
长远思考，宏大思考。
"We are all the sum of our contradictions - that's what makes biography so fascinating."
物理系统的对称性反映在其能级的简并性上。