Or as Henry Ford said:
"Enthusiasm is the yeast that makes your hopes shine to the stars. Enthusiasm is the sparkle in your eyes, the swing in your gait. The grip of your hand, the irresistible surge of will and energy to execute your ideas."
When I was younger, my enthusiasm was often commented upon by my elders. Now I wonder, is enthusiasm a characteristic of the young? Perhaps, but I've met young people with little enthusiasm for anything. In fact enthusiasm is often labeled "uncool." But I believe it is still important to convey to students one's on love of learning about a subject.
How can teachers who aren't engaged in their subject, expect to engage others in it?