一个奇怪的事实是,根据从生物学或地球物理学的角度出发,对地球史前条件会得出完全相反的结论,这反映了我们目前知识的不完整状态。
The teacher who is indeed wise does not bid you to enter the house of his wisdom but rather leads you to the threshold of your own mind.
言语当然是人类使用的最强效的药物。