Those who never change their minds, never change anything.

People are never able to outperform their self-image.

I've always thought that a feeling which changes never existed in the first place.

An existant can never justify the existence of another existant.

It isn't possible to change your behaviour and still be the same person you were before.

Nothing has ever been achieved by the person who says, It can't be done.

You can’t make a dog happy by forcibly wagging its tail. And you can’t change people’s minds by utterly refuting their arguments.

Progress is impossible without change; and those who cannot change their minds cannot change anything.

It doesn’t matter how much you love someone, you are never going to be what that person wants you to be.

One cannot alter a condition with the same mind set that created it in the first place.

For one thing we know beyond all doubt: Nothing has ever been achieved by the person who says, “It can’t be done.

Ignorance never settles a question.

No one gets over anything.

Never does Nature say one thing and Wisdom another.