Dr. Arnim Zola: HYDRA was founded on the belief that humanity could not be trusted with its own freedom. What we did not realize was that if you tried to take that freedom, they resist. The war taught us much. Humanity needed to surrender its freedom willingly. After the war, S.H.I.E.L.D. was founded, and I was recruited. The new HYDRA grew, a beautiful parasite inside S.H.I.E.L.D. For 70 years, HYDRA has been secretly feeding crises, reaping war. And when history did not cooperate, history was changed.
Natasha Romanoff: That's impossible. S.H.I.E.L.D. would've stopped you.
Dr. Arnim Zola: Accidents will happen. HYDRA created a world so chaotic that humanity is finally ready to sacrifice its freedom to gain its security. Once the purification process is complete, HYDRA's New World Order will arise. We won, Captain. Your death amounts to the same as your life, a zero sum!