Open and Calm Mind in Chinese / Japanese...

虛心坦懐 is a Japanese proverb that means “with an open and calm mind,” “with no preconceived notions,” or “without reservations.”

In some contexts, it can mean frank or candid.

If you want to remind yourself to approach each situation with no preconceptions, this is a good title for you. This can also refer to the ideas of being candid, frank, and straightforward.

虛心 is a Buddhist term that speaks of being open-minded and/or having a calm and humble mind or heart.