As far as I am concerned, no road that would lead us to health is either arduous or expensive.

We have so much ill fortune as inconstancy, or so much bad purpose as folly, we are not so full of evil as we are of inanity; we are not so wretched as we are base

I find no quality so easy for a man to counterfeit as devotion, though his life and manner are not conformable to it; the essence of it is abstruse and occult, but the appearances easy and showy.

Fortune, to show us her power in all things, and to abate our presumption, seeing she could not make fools wise, has made them fortunate.

I write to keep from going mad from the contradictions I find among mankind - and to work some of those contradictions out for myself.

The man who thinks he knows does not yet know what knowing is

Seeing that the Senses cannot decide our dispute, being themselves full of uncertainty, we must have recourse to Reason; there is no reason but must be built upon another reason: so here we are retreating backwards to infinity.