你的自我价值由你自己决定。你不必依赖别人告诉你你是谁。
The discovery of the accelerating expansion of the universe was a complete surprise.
The thought of death should usher us towards whatever happens to matter most to us; it should lend us the courage to pursue the way of life we value in our hearts.
实现明天理想的唯一障碍是今天的疑虑。
What’s really important is to question the questions.
"The best investment you can make is in yourself."