The study of logic is not just about formal systems, but about the very nature of human reasoning.
逻辑学研究不仅仅是关于形式系统，更是关于人类推理的本质。
Kindness can be a revolutionary act in a world that often rewards selfishness.
预测未来的唯一方法就是创造未来。
Success is not final, failure is not fatal: It is the courage to continue that counts.
We must balance the need for energy today with the imperative of protecting the planet for tomorrow.
我们必须平衡当今的能源需求与保护地球未来的必要性。
