数学中的合作是必不可少的；没有人能独自解决所有问题。
Collaboration in mathematics is essential; no one can solve all the problems alone.
可持续发展不是选择，而是责任。
A proof is a repeatable experiment in persuasion.
Leadership in the energy sector means making tough decisions today that will shape a sustainable tomorrow.
写作是抵抗世界沉默的方式。