Famous quotes containing the words optimal and/or play:
“In the most desirable conditions, the child learns to manage anxiety by being exposed to just the right amounts of it, not much more and not much less. This optimal amount of anxiety varies with the child’s age and temperament. It may also vary with cultural values.... There is no mathematical formula for calculating exact amounts of optimal anxiety. This is why child rearing is an art and not a science.”
—Alicia F. Lieberman (20th century)
“The day-laborer is reckoned as standing at the foot of the social scale, yet he is saturated with the laws of the world. His measures are the hours; morning and night, solstice and equinox, geometry, astronomy, and all the lovely accidents of nature play through his mind.”
—Ralph Waldo Emerson (1803–1882)