49. For people to pay attention to something, they must first percieve it

FOR PEOPLE TO PAY ATTENTION TO SOMETHING, THEY MUST FIRST PERCIEVE IT.

SOUND

SIGHT

SMELL

TOUCH

TASTE

If you're standing at a high point in total darkness, you can see a candle 30 miles away.

If you're in a very quiet room, you can hear a watch ticking 20 feet away.

You can smell a drop of perfume in about 800 square feet of space.

You can feel a human hair on your skin.

You can taste a teaspoon of sugar in two gallons of water.