For the first time science and medicine can diminish drudgery and pain.
Only those who see the invisible can do the impossible.

Though sometimes quoted as if he were author of it, the expression "Only those who see the invisible can do the impossible" is one that greatly predates Lown's use of it; it has also been attributed to Thomas Jefferson, Jesus and Mrs. Charles E. Cowman, but the earliest published expression yet located seems to have been one by American Baptist minister Rev. Robert Stuart MacArthur in Royal Messages of Cheer and Comfort Beautifully Told (1909) edited by Sarah Conger Robinson, p. 58