实现明天理想的唯一限制是我们今天的疑虑。

The only way to do great work is to love what you do.

The past is a shadow that follows you into the future.

没有压力，就没有钻石。

Science progresses not just by answering questions, but by asking better ones.

文学是我唯一无需护照就能生活的国度。