'Use
your brains : nobody can do it for you !'
meaning : take your time BEFORE
you speak, act or react foolishly or in any way you might regret
later;
train your memory : it works just the way intelligence
and the freedom of the press do, they only wear out if unused.
In other words, use them or lose them !
Raphaël
(Sanzio), The great Renaissance painter, once said that "To
understand is to equal" : you will only know you
have understood when you are able to say the same
as what you heard but in your own words.
As
long as you keep repeating, all you can say is that you have 'learnt
by heart' someone else's own words... Repetition is only to be
used for memorizing -- and when you try memorizing words, use
a pen too !