As far as I'm concerned, you can do what you like.
就我而言,你可以自便。
The unrighteous penny corrupts the righteous pound.
不正当得来的便士会使正当得来的英镑受到污浊。
Nor could he have foreseen how we could use the Internet to obtain information on every known subject, so we can read it on a screen in our homes and even print it as well if we want to.