We have progressed from the stone age and moved on to the age of stone hearted people
All's well that carries on well
Don't be bothered by troubles because they are generally guests we ourselves invite - they will stay for some time and then leave
Don't try to tell me what I am because I know what I am not
I know that you know but you do not know that you really do not know - know yourself. Look within and get to know yourself better.
The biggest fool is one who minds the business of others rather than minding his very own