"My father never wrote about secular education," which he says is unfortunate, because as he says the Modern Orthodox world lacks a stated ideology. Criticizing the Modern Orthodox world for this he said, "But if you don't feel it's an essential necessity for the shaping of your personality it's difficult to be passionate about it." 1:33:02 He said that the German Orthodox didn't know Torah, but they had a plan for being a Torah Jew.
His father joined the Agudah at the request of his friend Rabbi Elizer Silver, yet "He subsequently found that the Agudah is not an answer to anything. They were opposed. That's not a position." 1:28:17
"My father was a firm believer, and others try to change it, in secular education. There's no question about that. They may try to say my father didn't really believe in it. One professor in Yale, a chemist, asked me "What about his escapade in Berlin?" I said, "Sammy, Berlin was not an escapade. If you think it's an escapade, then you are as stupid in these matters as you are smart in matters of Chemistry." 1:26:48
"Haym Soloveitchik: How Modernity Changed Our Relationship to God," 18Forty
YouTube, https://www.youtube.com/watch?v=T8G8JtPOEF0