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In the quest to understand quantum gravity, we are like children playing on the shore of a vast ocean, occasionally finding a smooth pebble or a pretty shell, while the great ocean of truth lies undiscovered before us.

Thank you to those who once looked down on me, you made me work harder.

The persistence of gender inequality is not just a failure of policy but a failure of imagination.

Love all，trust a few ,do wrong to none.

The art of doing mathematics consists in finding that special case which contains all the germs of generality.