I learned to read from school books, newspapers and the Bible. But in time I found that these were not enough.
Civilized people depend too much on man-made printed pages.
I turn to the Great Spirit's book which is the whole of his creation. You can read a big part of that book if you study nature. But the Great Spirit has provided you and me with an opportunity for study in nature's university, the forests, the rivers, the mountains, and the animals which include us. Both Mani and Agassiz offer excellent advice to those who wish to make discoveries about the natural world. However, the picture is almost certainly posed with a dead crab because a live blue crab would have both pincers clamped onto the boy's hand.