我们有责任为子孙后代留下一个比我们发现时更好的地球。

欧佩克不再掌控全球石油市场的所有牌。

"Memory is a tricky thing; it can be both a blessing and a curse."

The greatest problem for mathematicians now is probably the Riemann Hypothesis.

"Sometimes, the hardest part of life is not the suffering, but the waiting."

"You have to be patient and persistent. Success doesn't come overnight."

Human freedom is bounded by its choices.

书是灵魂之间的桥梁，跨越时空连接读者与作家。