The length of a man's outspread arms is equal to his height.

Each man is always in the middle of the surface of the earth and under the zenith of his own hemisphere, and over the centre of the earth.

Poor is the pupil who does not surpass his master.

He who is fixed to a star does not change his mind.

Knowledge of the past and of the places of the earth is the ornament and food of the mind of man.

Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.