Whoever wishes to foresee the future must consult the past; for human events ever resemble those of preceding times. This arises from the fact that they are produced by men who ever have been, and ever shall be, animated by the same passions, and thus they necessarily have the same results.
When we decide to be happy we accept the responsibility to bring happiness to someone else. Some decide that happiness and glee are the same thing, they are not. When we choose happiness we accept the responsibility to lighten the load of someone else and to be a light on the path to another who may be walking in darkness.
To succeed, you must have tremendous perserverance... tremendous will. "I will drink the ocean", says the perservering soul; at my will mountains will crumble. Have that sort of energy, that sort of will; work hard, and you will reach the goal.
If you have not even a little imagination, you are simply a brute. So you must not lower your ideal, neither are you to lose sight of practicality. We must avoid the two extremes.... You must try to combine in your life immense idealism with immense practicality.