Man is not logical and his intellectual history is a record of mental reserves and compromises. He hangs on to what he can in his old beliefs even when he is compelled to surrender their logical basis.

So we beat on, boats against the current, borne back ceaselessly into the past.

The price of freedom is eternal vigilance.

Knowledge is represented in distributed patterns of activation across networks of neurons.

在数学中，旅程与目的地同样重要。

事实总是友好的，一个人在任何领域获得的每一点证据，都会让他更接近真相。

Truth is like a blanket that always leaves your feet cold. You push it, stretch it, it'll never be enough. You kick at it, beat it, it'll never cover any of us. From the moment we enter crying to the moment we leave dying, it will just cover your face as you wail and cry and scream。