量子引力问题不仅是物理学的问题，也是科学哲学的问题。

唱歌不是为了出名，而是因为热爱。

In quantum mechanics, the act of measurement can change the state of the system being measured.

Look at a day when you are supremely satisfied at the end. It's not a day when you lounge around doing nothing; it's a day you've had everything to do and you've done it.

Change starts with awareness, but it requires action to make a real difference.

You get what you give. What you put into things is what you get out of them.

The only true wisdom is in knowing you know nothing.