When you know a thing to hold that you know it and when you do not know a thing to allow that you do not know it - this is knowledge.
When it is obvious that the goals cannot be reached don't adjust the goals...
Belief and knowledge are considered to be two different things. But they are...
A good government implies two things first fidelity to the objects of the government secondly a knowledge of the means by which those objects can be best attained.