Make philosophy thy journey, theology thy journey's end: philosophy is a pleasant way, but dangerous to him that either tires or retires; in this journey it is safe neither to loiter nor to rest, till thou hast attained thy journey's end; he that sits down a philosopher rises up an atheist.

Enchiridion Institutions, Essays and Maxims, political, moral & divine. Divided into four centuries. By Francis Quarles (ed. 1844)