grammar opinion request

[ajva]

Something I've been thinking about for a while: does the impersonal third person possessive require an apostrophe? It seems it is always written without. Can you give me a reference as to why this is correct? For example:

This is a guide for how to live ones life.

As opposed to

This is a guide for how to live one's life.

References welcome.

Comments

[djm4]

It takes an apostrohpe. Fowler says so, and that's always good enough for me unless I have a very good reason to think otherwise.