拥有美好一天的唯一方法是以积极的态度开始它。
The only way to have a good day is to start it with a positive attitude.
生活中最大的荣耀不在于从不跌倒,而在于每次跌倒后都能站起来。
Psychology must be a practical science, concerned with the how and why of mental operations.
A mathematician's work is never done; there are always new questions to explore and new mysteries to uncover.
想到自己可能成为从世界上消除最大灾难之一的工具,同时怀有享受独立、家庭和平与幸福的希望,这种喜悦常常如此强烈,以至于在草地上研究我喜爱的课题时,我有时会陷入一种遐想。
管理良好的森林是一份不断给予的礼物。