Punctuation the marks hierarchically, in terms of weight". Cecil Hartley's poem identifies their relative values: <poem style=margin:4em;> The stop point out, with truth, the time of pause A sentence doth require at ev'ry clause. At ev'ry comma, stop while "one" you count; At semicolon, "two" is the amount; A colon doth require the time of "three"; The period "four", as learned men agree. </poem> The use of punctuation was not standardised until after the invention of printing. According to the 1885 edition of "The American Printer", the importance of punctuation was noted in various sayings by children such as: <poem style=margin:4em;>
Punctuation of English is strict about not including terminal punctuation within the quotation marks unless it was also found in the quoted material. Some writers conflate logical quotation and the common British style (which actually permits some variation, such as replacement of an original full stop with a comma or vice versa, to suit the needs of the quoting sentence, rather than moving the non-original punctuation outside the quotation marks). For example, "The Chicago Manual of Style", 14th ed.: "The British style is strongly advocated by some American language experts. Whereas there clearly is some risk with question marks and exclamation points, there