The universe is a machine governed by mathematical laws.
The best performance improvement is the transition from the nonworking state to the working state.
The splinter in your eye is the best magnifying-glass.
快乐激发玩耍的冲动，兴趣激发探索的冲动，满足激发品味和整合的冲动，而爱在安全、亲密的关系中激发这些冲动的循环往复。