不忘初心,方得始终的整句翻译(来自The Hazy Moon of Enlightenment):
There is a passage of the Avatamsaka Sutra: "The very beginning mind itself is the most accomplished mind of true enlightenment" or "The very moment of raising beginner’s mind is the accomplishment of true awakening itself"
日语版『不忘初心』,使用也比较广泛。(来自Zeami)
Shoshin wasuru bekarazu (Remember your original intention)
实际上『不忘初心,方得始终』的出处华严经有英文版,但未能找到材料。