Absence sharpens love, presence strengthens it.

Iron sharpens iron; scholar, the scholar.

As iron sharpens iron, so a friend sharpens a friend.

You're not human if you don't feel fear. But I've learnt to treat fear as an emotion that sharpens me. It's there to give me that edge for what I have to do.

The flame of anger, bright and brief, sharpens the barb of love.

Trouble sharpens the vision.

Kate Chambers, amateur sleuth in "Ground Truth: A Pittsburgh Murder Mystery," believes that "One drink sharpens your wit, two drinks makes you a philosopher, three or more drinks just makes you stupid.

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

As iron sharpens iron so a friend sharpens a friend.

You're not human if you don't feel fear. But I've learnt to treat fear as an emotion that sharpens me. It's there to give me that edge for what I have to do.

Meditation is all about the pursuit of nothingness. It's like the ultimate rest. It's better than the best sleep you've ever had. It's a quieting of the mind. It sharpens everything especially your appreciation of your surroundings. It keeps life fresh.

The flame of anger bright and brief sharpens the barb of love.