It is an arduous race, for only the fittest, yet the race is always booked early to its maximum.
A slight burst of tears followed from Martha until Dean rendered a speech on survival of the fittest, the laws of the jungle, the food chain and supply and demand.
The fittest metrical vehicle for epic, didactic, and satiric poetry had been discovered, but its movement was as yet rude and inharmonious.
Calpurnius Piso as the fittest man to succeed him.
Hence, as the survival of the fittest, there are many artificial waters, with low dams consisting exclusively of earth - and sometimes very sandy earth - satisfactorily performing their functions with no visible leakage.