经验的直接内容是心理学必须考虑的唯一事实。

The best investment strategy is one that is simple, low-cost, and broadly diversified.

The more often a stupidity is repeated， the more it gets the appearance of wisdom.

我敬佩简单的快乐，那是复杂性最后避难所。

拓扑绝缘体的美在于它们的鲁棒性；它们的表面态受到保护，不受无序和缺陷的影响。