"The knowledge of man is as the waters, some descending from above, and some springing from beneath; the one informed by the light of nature, the other inspired by Divine revelation. The light of nature consisteth in the notions of the mind and the reports of the senses for as for knowledge which man receiveth by teaching, it is cumulative, and not original ; as in a water which, besides his own spring-head, is fed with other springs and streams. So then, according to these two differing illuminations, or originals, knowledge is first of all divided into Divinity and Philosophy."  Advancement of Learning ii.
"Light seeking light, doth light of light begule,
So, are you find where light in darkness lies....
Study is like the heaven's glorious sun,
That will not be deep-search'd with saucy looks,
Small have continual plodders over won,
Save base authority form others' books,
These earthly godfathers of heavenly light,
And give a name to every fixed star,
Have no more profit of their shining nights
Than those that walk, and wot not what they are.
Too much to know is to know nought but fame,
And every godfather can give a name." — Love's Labours Lost i. 1

"Nature cannot choose his origin. Hamlet

"Enkindle all th sparks of nature."— Lear iii. 7

"In Nature's infinite book of secrecy
A little I have read." —Antony and Cleopatra 1. 2

"Better, surely it is better, that we should know all that we need to know, and think our knowledge imperfect, than that we should think our knowledge perfect, and yet not knowing everything that we need to know." Novum Organum 1. 126

"What is the end of study? Let me know.
Why, that to know which else we should not know.
Things hid and barr'd, you mean, from common sense...
If study's gain be thus, and this be so,
Study knows that, which yet it doth not know."Love's Labours Lost i. 1 - Sir Francis Bacon's New Advancement of Learning