Any one reflecting upon the thought he has of the delight, which any present or absent thing is apt to produce in him, has the idea we call love.
John LockeThe acts of the mind, wherein it exerts its power over simple ideas, are chiefly these three: 1. Combining several simple ideas into one compound one, and thus all complex ideas are made. 2. The second is bringing two ideas, whether simple or complex, together, and setting them by one another so as to take a view of them at once, without uniting them into one, by which it gets all its ideas of relations. 3. The third is separating them from all other ideas that accompany them in their real existence: this is called abstraction, and thus all its general ideas are made.
John LockeThe only fence against the world is a thorough knowledge of it, into which a young gentleman should be enter'd by degrees, as he can bear it; and the earlier the better, so he be in safe and skillful hands to guide him.
John LockeThe works of nature and the works of revelation display religion to mankind in characters so large and visible that those who are not quite blind may in them see and read the first principles and most necessary parts of it and from thence penet into those infinite depths filled with the treasures of wisdom and knowledge.
John Locke