Learning about the world means getting out of one's bedroom (or cave, for that matter) and gain first-hand experience. No need to travel far. There's a world of

Learning about the world means getting out of one's bedroom (or cave, for that matter) and gain first-hand experience. No need to travel far. There's a world of difference between reading about grass and laying in an open field under the sun (or in the rain). In fact most if not all sensory stimulations cannot be experienced any other way than by direct, actual experience. Then they can be recalled via words, but not lived for the first time.