A literatura é a arte de transformar palavras em sentimentos.
The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they believe it will bring them strategic advantage.
读书人要为子孙营造福祉而不是祈求福祉。严谨家规，崇尚俭朴，教导耕田读书，累积陰德，这就是营造福祉。广积土地房屋，拉拢关系争取利益，买卖功名，这就是求福祉。营造福祉的，平淡而长久；祈求福祉的，浓郁却短暂。
Parental investment is the key to understanding sex differences in mating strategies.