Logic seems to be another word for life, for him. Logic, life: that's what we take from these lectures. Logic, life: but what has logic got to do with life? And what has life got to do with logic? 

Life, logic. It's a magic formula. We write it in our notebooks. The secret of life is logic: didn't Wittgenstein Jr say that? Life is logic: didn't he say that, too? But what does he mean? What does anything mean?