As selfishness and complaint pervert the mind so love with its joy clears and sharpens the vision.

The expectations of life depend upon diligence the mechanic that would perfect his work must first sharpen his tools.

Let the master praise him and say 'Here ye do well.' For I assure you there is no such whetstone to sharpen a good wit and encourage a will to learning as is praise.

There is no such whetstone to sharpen a good wit and encourage a will to learning as is praise.

To this wonderful page in our country's history another more glorious still will be added and the slave shall show at last to his free brothers a sharpened sword forged from the links of his fetters.

I tell students that even if they don't like math right now they can use math as a brain-sharpening tool - a tool that not only builds the foundation for a great career but that also builds self-confidence no matter what they choose to do with their lives.

The choice between a Labour government and a Tory one is sharpening minds.

In the future when Microsoft leaves a security-flaw in their code it won't mean that somebody hacks your computer. It will mean that somebody takes control of your servant robot and it stands in your bedroom doorway sharpening a knife and watching you sleep.

As iron sharpens iron so a friend sharpens a friend.

Training is such a vital part of preparation for a game you really do train to play. It tops up your ability like sharpening a carving knife. You can get away with not doing it for a while as long as you have reached a certain standard of fitness.