“Let us settle ourselves, and work and wedge our feet downwards through the mud and slush of opinion and tradition, and pride and prejudice, appearance and delusion, through the alluvium which covers the globe, through poetry and philosophy and religion, through church and state, through Paris and London, through New York and Boston and Concord, till we come to a hard bottom that rocks in place which we can call reality and say, "This is and no mistake.”