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I just try to concentrate on concentrating.

I have trouble with any kind of focus or concentrating, or getting anything done at all, really.

If I'm doing something, I tend to do it in a concentrated way.

I've got rid of the ADD, but I do find it hard to concentrate sometimes.

If you cannot concentrate, you are not so happy.

You've got to exfoliate, you know?

Concentrate all your thoughts upon the work at hand. The sun's rays do not burn until brought to a focus.

To concentrate intensely for 4 and a half hours, that's too hard for me. Too tiring. I concentrate 'lo maximo' on the 'golpe,' the stroke, but between strokes I'm interacting with the crowd or laughing with my caddie, talking about the spectators, the cute girls.

It's great concentrating so hard you feel your brain will explode.

Just let your skin breathe.