You can't change the past, but you can shape the future.
科学无国界,因为知识属于人类,是照亮世界的火炬。
The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function.
The way to right wrongs is to turn the light of truth upon them.
哲学的真正意义在于它能够唤醒我们的批判意识。