In this trifling affair， that misunderstandings and neglect occasion more mischief in the world than even malice and wickedness. At all events， the two latter are of less frequent occurrence.

The only way to change behavior is through manipulation of reinforcement contingencies.

如果你独处时感到寂寞，这说明你没有和你自己成为好朋友。

预测未来的最好方法就是创造未来。

To do mathematics is to engage in an act of discovery and conjecture, intuition and inspiration.