Never complain and never explain.
Things do not happen. Things are made to happen.
Be thine own palace, or the world's thy jail.
What you do today can improve all your tomorrows.
Who seeks shall find.
Be gentle to all and stern with yourself.
Be kind whenever possible. It is always possible.
Always desire to learn something useful.
Leap, and the net will appear.
If you can dream it, you can do it.
Intensity like signal strength will generally fall off with distance from the source, although it also depends on the local conditions and the pathway from the source to the point.