没有青春的爱情有何滋味?没有爱情的青春有何意义?
The ratio of positive to negative emotions that predicts flourishing is about 3 to 1. Above that ratio, people tend to flourish; below it, they tend to languish.
真正的力量不在于从不跌倒,而在于每次跌倒后都能站起来。