虚心 (xū xīn): modest, open-minded

Although he is already a famous professor, he remains very open-minded and often asks his younger colleagues about new research methods.

When learning a foreign language, you should be open-minded about accepting others' corrections; don't refuse to change just because you're afraid of losing face.

He open-mindedly listened to the client's feedback, revised the product design, and ultimately won over the market.