知足常樂的英文金句有：
* Happiness is a state of mind that comes from being content.
* Being satisfied with what you have in life leads to happiness.
* Contentment breeds happiness.
* When you are grateful for what you have, you will find happiness.
* Content is a state of mind that leads to happiness.
* Being grateful for what you have is the key to a happy life.
* A life filled with contentment and gratitude brings joy and fulfillment.
希望這些英文金句能夠幫助您表達知足常樂的含義。