[Sometimes the comma is to be read like an exclamation.]
O, how can you destroy those beautiful things which your father procured for you! that beautiful top, those polished marbles, that excellent ball, and that beautiful painted kite,—oh, how can you destroy them, and expect that he will buy you new ones!
O, how canst thou renounce the boundless store of charms that Nature to her votary yields! the warbling woodland, the resounding shore, the pomp of groves, the garniture of fields, all that the genial ray of morning gilds, and all that echoes to the song of even, all that the mountain's sheltering bosom shields, and all the dread magnificence of heaven, oh, how canst thou renounce, and hope to be forgiven!
[Sometimes the comma, and other marks, are to be read without any pause or inflection of the voice.]
You see, boys, what a fine school-room we have, in which you can pursue your studies.
You see, my son, this wide and large firmament over our heads, where the sun and moon, and all the stars, appear in their turns.
Therefore, my child, fear, and worship, and love God.
He that can read as well as you can, James, need not be ashamed to read aloud.
He that can make the multitude laugh and weep as you can, Mr. Shakspeare, need not fear scholars.
[Sometimes the pause of a comma must be made where there is no pause in your book. Spaces are left, in the following sentences, where the pause is proper.]