How many things be there, which when as a mere naturalist, thou hast barely considered of according to their nature, thou doest let pass without any further use? Whereas thou shouldst in all things so join action and contemplation, that thou mightest both at the same time attend all present occasions, to perform everything duly and carefully and yet so intend the contemplative part too, that no part of that delight and pleasure, which the contemplative knowledge of everything according to its true nature doth of itself afford, might be lost. Or, that the true and contemnplative knowledge of everything according to its own nature, might of itself, (action being subject to many lets and impediments) afford unto thee sufficient pleasure and happiness.