The cure of many diseases is unknown to physicians of Hellas, because they are ignorant of the whole, which ought to be studied also; for the part can never be well unless the whole is well.
We have a given problem to solve. If we undertake the solution, there is, of course, always danger that we may not solve it aright; but to refuse to undertake the solution simply renders it certain that we cannot possibly solve it aright.
It is better by noble boldness to run the risk of being subject to half of the evils we anticipate than to remain in cowardly listlessness for fear of what might happen.