If you mean that only the first (or last) word of a sentence appears

on a given line, that's perfectly normal and acceptable. So is a piece

of a hyphenated word. In this morning's New York Times, in just the

lead article in the right-hand column, there are many such instances.

  - Herb

Jacob's correct in saying -

function(){return A.apply(null,[this].concat($A(arguments)))}

function(){return A.apply(null,[this].concat($A(arguments)))}function(){return A.apply(null,[this].concat($A(arguments)))}function(){return A.apply(null,[this].concat($A(arguments)))}

Jacob Bugge wrote:

 

Ah, silverbadger.

 

As Herb says.

 

Whether you use Justify (Full Lines) or Align Left (there may be different terms in different applications), normally you just let the type/text flow over the lines as they may fit, with or without hyphens, regardless of sentences/full stops.

But, (isn't there always a but) there is a stylistic case to be made for avoiding line breaks that potentially 'trick the reader's eye.' We tend to read text a line at a time unless there are lines longer than we can process in a single pass. You can follow this link to see a sample article on the subject.

http://baymard.com/blog/line-length-readability

The reading and comprehension process can also be interrupted when the 'topic' changes abruptly, especially at the beginning or end of a line. This includes lines that break after a short word at the beginning of sentence, like A, I, O (rare), At, By, etc. You can probably think of several more examples. I'd also include The (as in the original post) as it can be the very devil to proof-read correctly.

Consider this snippet:

He was a tall man with a military bearing which he threw in the air and caught. The

the example here comes from that especially enchanting book, 'Puckoon' written by

Spike Milligan.

Many readers will fail to pick up the repeated 'The the', and some spelling checkers get confused by the different capitalization. So, its probably better set (using a 'hard space' to force the issue) as:

He was a tall man with a military bearing which he threw in the air and caught.

The example here comes from that especially enchanting book, 'Puckoon' written

by Spike Milligan.

As for A, I, etc -- the isolated letter just looks daft.

In summary, the rule is that there are no rules. Type should both look right and flow right, so the reader's brain isn't distracted by the visual anomalies.