is regarded as the second founder of Soto Zen. Menzan Zuiho (1683-1769) made Dogen and his writings the central source of doctrine in Soto, and Gento Sokuchu
de-emphasised the use of koans in Soto. In the modern era the most famous is probably Sawaki Kodo
You may also look at this: History of the Soto Zen School
"While teachers of the middle way, mind only, transcendent wisdom, mantra, and other schools may have their own assertions, the fulfillment of those intentions is the same. There is not a single thing that is not contained within mind."
(Gampopa to Düsum Khyenpa, in "The First Karmapa", KTD Pub, p254)
“If you recognize the world of appearance and existence as the mind, realize the mind itself as empty, and have no grasping at the superiority of your realizations — this is the ultimate view."
(Chegom Dzongpa, in "The Book of Kadam", Wisdom Pub, p609)