Eureka! (I have found it!).
Rise above oneself and grasp the world.
The centre of gravity of any cylinder is the point of bisection of the axis.
How many theorems in geometry which have seemed at first impracticable are in time successfully worked out!
Having been the discoverer of many splendid things, he is said to have asked his friends and relations that, after his death, they should place on his tomb a cylinder enclosing a sphere, writing on it the proportion of the containing solid to that which is contained.
The perimeter of the earth is about 3,000,000 stadia and not greater.