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...
Those who gave thee a body furnished it with weakness but He who gave thee Soul armed thee with resolution. Employ it and thou art wise be wise and thou art happy.