Success is not measured by what you accomplish but by the opposition you have encountered, and the courage with which you have maintained the struggle against overwhelming odds.”Orison Swett Marden
Time is of of no account with great thoughts, which are as fresh today as when they first passed through their authors’ minds ages ago. – Samuel Smiles
Have some knowledge in natural sciences! As lights of the world, we need to have some knowledge in natural sciences in order to dominate the universe well.