If at first you don't succeed, give up, no use being a damn fool. If both of us thought alike, one of us would not be necessary. If everything seems to be going well, you have obviously overlooked something. If you're going in the wrong direction, God allows u-turns. If you find a path with no obstacles, it probably doesn't lead anywhere.
Indecision is the key to flexibility.
It has been determined that research causes cancer in rats. It is harder to conceal ignorance than to acquire knowledge. It is when we forget ourselves that we do things that are most likely to be remembered. It takes less time to do a thing right than to explain why you did it wrong. It will do no good to get on the right track if you are headed in the wrong direction.