The Elements of Style · Rule 18

Place the emphatic words of a sentence at the end.

The proper place in the sentence for the word, or group of words, which the writer desires to make most prominent is usually the end.

Humanity has hardly advanced in fortitude since that time, though it has advanced in many other ways.→Humanity, since that time, has advanced in many other ways, but it has hardly advanced in fortitude.
This steel is principally used for making razors, because of its hardness.→Because of its hardness, this steel is principally used in making razors.

The word or group of words entitled to this position of prominence is usually the logical predicate, that is, the new element in the sentence, as it is in the second example.

The effectiveness of the periodic sentence arises from the prominence which it gives to the main statement.

The other prominent position in the sentence is the beginning. Any element in the sentence, other than the subject, may become emphatic when placed first.

A subject coming first in its sentence may be emphatic, but hardly by its position alone. In the sentence,

the emphasis upon kings arises largely from its meaning and from the context. To receive special emphasis, the subject of a sentence must take the position of the predicate.

The principle that the proper place for what is to be made most prominent is the end applies equally to the words of a sentence, to the sentences of a paragraph, and to the paragraphs of a composition.