Starves them, forces them to steal and if necessary, to kill.

10 seconds sound clip from the 300 movie soundboard.

You can hear this line at 00:02:50 in the Blu-ray version of the movie.

Quote context

[...]

- Taught never to retreat, never to surrender.

- Taught that death on the battlefield in service to Sparta was the greatest glory he could achieve in his life.

- At age 7, as is customary in Sparta, the boy was taken from his mother and plunged into a world of violence.

- Manufactured by 300 years of Spartan warrior society to create the finest soldiers the world has ever known.

- The agoge, as it's called, forces the boy to fight.

- Starves them, forces them to steal and if necessary, to kill.

- By rod and lash, the boy was punished, taught to show no pain, no mercy.

- Constantly tested, tossed into the wild. Left to pit his wits and will against nature's fury.

- It was his initiation, his time in the wild, for he would return to his people a Spartan or not at all.

- The wolf begins to circle the boy.

[...]