<human>:  How did the Roman philosopher Cato the Younger die?
<bot>: Cato the Younger died in 123 BC in Rome. He was a Roman statesman and orator. He was the last of the Younger Cato family, and was the first Roman Senator to commit suicide. He was famous for his moral character and his strict adherence to the principles of the Stoic philosophy. He was a prominent opponent of the expansion of Roman power, and advocated a policy of self-sufficiency.