The truth is, marijuana probably isn't going to make you kill people. Most likely isn't going to fund terrorists, but pot makes you feel fine with being bored and it's when you're bored that you should be learning a new skill or some new science or being creative. If you smoke pot you may grow up to find out that you're not good at anything.
The engineer is the key figure in the material progress of the world. It is his engineering that makes a reality of the potential value of science by translating scientific knowledge into tools, resources, energy and labor to bring them into the service of man ... To make contributions of this kind the engineer requires the imagination to visualize the needs of society and to appreciate what is possible as well as the technological and broad social age understanding to bring his vision to reality.