W życiu trzeba być twardym

Jak powiedzieć po angielsku "W życiu trzeba być twardym"?
:)

tough /?/

In life you have to be hard

Super!

It's all relative. Sometimes it's just better to be a pessimist. You'll vever be disappointed.

it also depends on your version of 'hard' - how do we measure what is 'hard' and what is 'not hard' ;-)