A wise person

He is very intelligent and able to think problems（Suddenly, some dry leaves blew in through the window. Cai Lun picked up a leaf and looked at it carefully. What else could possibly be used to make paper? Then, a great idea came to mind）He has strong mobility and never procrastinates（The first thing in the next morning, he asked his men to collect some bark, hemp waste, old cloth and fishing nets.）