So this is inspired by the Epic speechs of Anime topic, just for Gundam shows (And books, and Manga) only. Also small quotes and such are welcome too.
One of my personal favorites.
"Do not dismiss! May I have this floor?
I begin by apologizing to the assembly and all Federation citizens. We mean no disrespect by taking over this meeting. I am Lieutenant Quattro Bajeena of the Anti-Earth Union Group. There’s one more thing I must disclose before my speech. I have another name:
I’m also the man who was known as Char Aznable!
I’ve come to you today as someone who carries within him the true aspirations of Zeon. Do not think of me as Char of the Principality of Zeon, but as the son of Zeon Deikun. Zeon Deikun’s legacy has nothing to do with the greed and hatred of the Zabi clan! Zeon Deikun did not build the Principality of Zeon! The Titans do as they please with the Earth Federation Forces. So it becomes apparent that they are worse than the Zabi family ever was. Humanity went to space so that the planet would not collapse under the weight of the people on it. Once there, they flourished, expanding their living space as they built more colonies on their own. Their success filled them with hubris and dreams of glory, leading to the creation of evils like the Zabi family. We mustn’t repeat that mistake! Why won’t people understand that their horizons will be expanded by moving into space? We believe that humanity should no longer pollute the Earth! But the Titans consist of people whose souls are pulled down by gravity. They think only of ravaging the planet! From the dawn of time, mankind has played in this cradle called Earth. But now, humanity must leave the nursery behind! Our infancy has come to an end! Tell me why, at this turning point, why must we fight amongst each other and further pollute the Earth!? The Earth should be returned to its natural state. And all humanity must live in outer space. Otherwise, Earth will no longer be “The Planet of Water”. Even this very city of Dakar, is slowly being engulfed by the desert. This is how exhausted the Earth is! Every one of us would like to see the Earth remain alive and beautiful. If so, we should not cling to the Earth like parasites just to fulfill our selfish desires! The Titans have started a battle, disregarding the lives of this assembly!
See for yourselves the brutality of their actions! They look down on the regular Federation Forces… and they label their opponents as evildoers! But their own arrogance is the greatest evil, and it will be the ruin of humanity!
Those of you who were watching that television should realize by now…this is how the Titans do their business! I admit it was wrong to take over this assembly. But what of the Titans who are trying to destroy it with its members still inside?! Even their own supporters!"
-Char Aznable’s Speech in Dakar during Zeta Gundam