Understanding things half-way is more dangerous than not understanding the things.
But, neither does that mean that one should not try to understand nor that not understanding things is incorrect. Most of the times, we shall go by the conscience, as we all can stuck mid way through our wish to understand the things completely because of many reasons. All one can or shall do is to be more conscious in our try and hold it tight forgetting the fatigue until we can. Humanly impossible it could be, sometimes. But every time, humans can forgive each other, help each other and move forward towards success together.