劳动力市场在不断演变，我们的模型应反映这一点。
The labor market is constantly evolving, and our models should reflect that.
Positive psychology is as concerned with strength as with weakness, as interested in building the best things in life as in repairing the worst.
世界比你想象的更具可塑性。我们可以把它塑造成更好的样子。
自由民主的力量在于其自我纠正和改革的能力。
You're dead if you aim only for kids. Adults are only kids grown up， anyway.
Success comes from persistence and the willingness to learn from failures.
Leadership means making tough decisions today that will benefit future generations.