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.
As the class struggle sharpens in the U.S. Marxism will come into its own as a great popular study.
I've always been fascinated with adrenaline; it's saved my life more than once, and it's caused me to need it to save my life more than once. One of the most fascinating responses in human evolution, adrenaline sharpens your brain; it sharpens your responses.
Iron sharpens iron, and that's one man getting another guy ready to play.
Math is like going to the gym for your brain. It sharpens your mind.
One must dig deeply into opposing points of view in order to know whether your own position remains defensible. Iron sharpens iron.
A man of letters never objects to a slum. He sharpens his pen there.
An actual scientist embraces debate because it sharpens their research.
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.
As iron sharpens iron, so a friend sharpens a friend.
