Ambition should be made of sterner stuff.

— Mark Antony (Marlon Brando)

5 seconds sound clip from the Julius Caesar (1953) movie soundboard.

You can hear this line at 01:13:34 in the DVD version of the movie.

Quote context

[...]

- Come I to speak in Caesar's funeral.

- He was my friend, faithful and just to me.

- But Brutus says he was ambitious, and Brutus is an honorable man.

- He hath brought many captives home to Rome, whose ransoms did the general coffers fill. Did this in Caesar seem ambitious?

- When that the poor have cried, Caesar hath wept.

- Ambition should be made of sterner stuff.

- Yet Brutus says he was ambitious, and Brutus is an honorable man.

- You all did see that on the Lupercal I thrice presented him a kingly crown, which he did thrice refuse.

- Was this ambition?

- Yet Brutus says he was ambitious, and, sure, he is an honorable man.

[...]