"Life is not measured by the number of breaths we take, but by the moments that take our breath away."
The doorway to happiness opens from the inside.
Loneliness is the price we pay for being born.
解决复杂问题的关键通常是找到正确的抽象,这种抽象可以在不丢失问题本质特征的情况下简化问题。