The right to do something does not mean that doing it is right.
The sole advantage of power is that you can do more good.
To think is easy. To act is hard. But the hardest thing in the world is to act in accordance with your thinking.
Ultimately, the only power to which man should aspire is that which he exercises over himself.
Alexander Graham Bell
What this power is, I cannot say. All I know is that it exists...and it becomes available only when you are in that state of mind in which you know exactly what you want...and are fully determined not to quit until you get it.
What we actually learn, from any given set of circumstances, determines whether we become increasingly powerless or more powerful.