He who is running a race ought to endeavor and strive to the utmost of his ability to come off victor; but it is utterly wrong for him to trip up his competitor, or to push him aside. So in life it is not unfair for one to seek for himself what may accrue to his benefit; but it is not right to take it from another.
Qui stadium currit, eniti et contendere debet, quam maxime possit, ut vincat; supplantare eum, quocum certer, aut manu depellere nullo modo debet. Sic in vita sibi quemque petere quod pertineat ad usum, non iniquum est: alteri deripere ius non est.
Original text (Latin)