False facts are highly injurious to the progress of science, for they often endure long.  

我们的决定往往比我们相信的要少理性，受到无数潜意识因素的影响。

Men become civilized, not in proportion to their willingness to believe, but in proportion to their readiness to doubt.

观察他交往的是什么人，就能知道他的品行如何。