Regarding Nature Study - I think this is the quote Rachel was talking about - "'Suppose,' says Leigh Hunt, 'suppose flowers themselves were new! Suppose they had just come into the world, a sweet reward for some new goodness... Imagine what we should feel when we saw the first lateral stem bearing off from the main one, and putting forth a leaf. How we should watch the leaf gradually unfolding its little graceful hand; then another, then another; then the main stalk rising and producing more; then one of them giving indications of the astonishing novelty––a bud! then this mysterious bud gradually unfolding like the leaf, amazing us, enchanting us, almost alarming us with delight, as if we knew not what enchantment were to ensue, till at length, in all its fairy beauty, and odorous voluptuousness, and the mysterious elaboration of tender and living sculpture, shines forth the blushing flower.' The flowers, it is true, are not new; but the children are; and it is the fault of their elders if every new flower they come upon is not to them a Picciola, a mystery of beauty to be watched from day to day with unspeakable awe and delight." - Charlotte Mason, Vol. 1 - Home Education, p. 53
Regarding Discrimination of Sounds - "A quick and true ear is another possession that does not come by Nature, or anyway, if it does, it is too often lost. How many sounds can you distinguish in a sudden silence out of doors? Let these be named in order from the less to the more acute. Let the notes of the birds be distinguished, both call-notes and song-notes; the four or five distinct sounds to be heard in the flow of a brook. Cultivate accuracy in distinguishing footfalls and voices; in discerning, with their eyes shut, the direction from which a sound proceeds, in which footsteps are moving. Distinguish passing vehicles by the sounds; as lorry, brougham, dog-cart. Music is, no doubt, the means par excellence for this kind of ear culture. Mrs.Curwen's 'Child Pianist' puts carefully graduated work of this kind into the hands of parents; and, if a child never become a performer, to have acquired a cultivated and correct ear is no small part of a musical education." - Charlotte Mason, Vol. 2 - Parents and Children, p. 185
Outro - ". . . give a child a single valuable idea, and you have done more for his education than if you had laid upon his mind the burden of bushels of information." - Charlotte Mason, Volume 1: Home Education, p. 174
Rachel's favorite quote - "The question is not,––how much does the youth know? when he has finished his education––but how much does he care? and about how many orders of things does he care? In fact, how large is the room in which he finds his feet set? and, therefore, how full is the life he has before him?” --Charlotte Mason, Vol. 3 - School Education, p. 170-171