Markdown already provides a form of highlighting quoting using <blockquote>:

This is not inline, but it functions pretty well for its use.

If you want to add some emphasis to your text, then look at this:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer tincidunt malesuada felis ut finibus. Mauris nisi dui, interdum ut nisi dignissim, venenatis ullamcorper metus. Suspendisse finibus dui ex, in lacinia dolor vulputate ac. Morbi mollis lorem ipsum, a convallis ipsum rutrum vitae. Pellentesque tempus malesuada facilisis. Cras consectetur vel lacus in dictum. Sed imperdiet vehicula velit nec suscipit. Aliquam vitae interdum ante. Sed ipsum tellus, mattis in est non, tempor pulvinar sem.

Markdown already provides a form of highlighting quoting using <blockquote>:

This is not inline, but it functions pretty well for its use.

If you want to add some emphasis to your text, then look at this:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer tincidunt malesuada felis ut finibus. Mauris nisi dui, interdum ut nisi dignissim, venenatis ullamcorper metus. Suspendisse finibus dui ex, in lacinia dolor vulputate ac. Morbi mollis lorem ipsum, a convallis ipsum rutrum vitae. Pellentesque tempus malesuada facilisis. Cras consectetur vel lacus in dictum. Sed imperdiet vehicula velit nec suscipit. Aliquam vitae interdum ante. Sed ipsum tellus, mattis in est non, tempor pulvinar sem.

Sometimes you have to be creative in order to provide the formatting that you're after. Markdown provides some basic formatting for setting content, all of which are sufficient. Highlighting can be done using the above quoting mechanism, or using bold/italics:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer tincidunt malesuada felis ut finibus.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer tincidunt malesuada felis ut finibus.