最困难的是在当下富足地生活,而不让它被过去或未来玷污。
The hardest thing is to live richly in the present without letting it be tainted by the past or future.
数学是一门活生生的学科,随着新思想的出现而不断发展。
Trust is earned through transparency and accountability.
The study of psychology is the study of life's wisdom.