Mary Cassatt, Children at the Seashore
"A child of two will gaze at a butterfly or an engine, become absorbed with pebbles on the shore, picking them up in handfuls and putting them into a bucket, then slowly taking them out in handfuls and dropping them pensively on to the beach...The mind should have the time and the opportunity to gaze. This involves hard work. the powers of the mind are dependent on repeated action for proper use No intimacy can be formed without effort. There must be vision and action, the two parts of knowing."
~~ "It All Comes Down to Education," by Mary Hardcastle (Charlotte Mason College). Parents' Review, Vol. 53, no. 7, July/August 1942, pp. 209-218