You are never too old to learn more than you already know and to become able to do more than you already can.

You are now too old to be made a scholar after my fashion, but you are never too old to learn more than you already know and to become able to do more than you already can.

To learn is to be young, however old.

I never stop learning.

So as you get older, and as your knowledge grows, don’t ever stop learning. Stay curious.

You are never too old to become younger!

Never stop learning. The thirst to gain more knowledge should never come to an end.

You can never learn less; you can only learn more.

It is never too late to be wise.

It’s never too early or too late to learn or get your ethical act together.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.

When you think you are too old to do something new remember you will never be younger than you are right now.

Learning never exhausts the mind.

But then, shall I never get any older than I am now? That'll be a comfort, one way — never to be an old woman — but then — always to have lessons to learn!