Curiosity begins as an act of tearing to pieces or analysis.

Thus the same object may supply a practical perception to one person and a speculative one to another, or the same person may perceive it partly practically and partly speculatively.

What is the meaning of the togetherness of the perceiving mind, in that peculiar modification of perceiving which makes it perceive not a star but a tree, and the tree itself, is a problem for philosophy

But unfortunately Locke treated ideas of reflection as if they were another class of objects of contemplation beside ideas of sensation.

You can mark in desire the rising of the tide, as the appetite more and more invades the personality, appealing, as it does, not merely to the sensory side of the self, but to its ideal components as well.

The thing of which the act of perception is the perception is experienced as something not mental.

Both expectations and memories are more than mere images founded on previous experience.