La identidad no es algo dado, sino algo que se construye.

Without models, we would be wandering in the dark when it comes to predicting climate change.

Human beings are not born once and for all on the day their mothers give birth to them, but life obliges them over and over again to give birth to themselves.

贫困陷阱的核心：今天的饥饿偷走了明天的生产力。