Latin Translation

Hi there,

i am looking for a phrase to be translated - in english it is "what one man can do - another can do" into latin please.

Also if anyone had any other phrases/ mottos on a similar meaning to the above, then i would like to see then too!

Finally, perhaps someone could recommend a good latin phrase/ motto book, with english translations.

Any help would be greatly appreciated and i thank youi in advance

Graham