The centre of gravity of any cylinder is the point of bisection of the axis.
Give me but a firm spot on which to stand, and I shall move the earth.
Those who claim to discover everything but produce no proofs of the same may be confuted as having actually pretended to discover the impossible.
Rise above oneself and grasp the world.
Eureka! (I have found it!).
Give me a place to stand, and a lever long enough, and I will move the world.