"The discovery of the art of Printing unbarred afresh the gates of Heaven, and let in that flood of light, of knowledg…"

"Analysis and synthesis, though commonly treated as two different methods, are, if properly understood, only the two n…"

"Be sober, and to doubt prepense, These are the sinews of good sense."

"The primary principle of education is the determination of the pupil to self-activity — the doing nothing for him whi…"

"The one condition under which all powers, and consequently the intellectual faculties, are developed, is exercise."

"The question—Is Truth, or is the Mental Exercise in the pursuit of truth, the superior end?—this is perhaps the most …"

""Sordet cognita veritas" is a shrewd aphorism of Seneca. A truth, once known, falls into comparative insignificance."

"[T]he sciences always studied with keenest interest are those in a state of progress and uncertainty: absolute certai…"

"In life," as the great Pascal observes, "we always believe that we are seeking repose, while, in reality, all that we…"

"However arid and uninviting the prospect of a History of Medicine may appear at a distance, it will be found graduall…"