I'll share some of my favourites from SMAC (1999), the undisputed, undefeated and overall best 4X game!

Pravin Lal:

• "As the Americans learned so painfully in Earth's final century, free flow of information is the only safeguard against tyranny. The once-chained people whose leaders at last lose their grip on information flow will soon burst with freedom and vitality, but the free nation gradually constricting its grip on public discourse has begun its rapid slide into despotism. Beware of he who would deny you access to information, for in his heart he dreams himself your master."

Sister Miriam:

• "The Morgans fear what may not be purchased, for a trader cannot comprehend a thing that is priceless."
• "Some would ask: 'how could a perfect God create a universe with so much that is evil?' They have missed a greater conundrum: why would a perfect God create a universe at all?"
• "The righteous need not cower before the drumbeat of human progress. Though the song of yesterday fades into the challenge of tomorrow, God still watches and judges us. Evil lurks in the datalinks as it lurked in the streets of yesterday. But it was never the streets that were evil."

Chairman Yang:

• "Learn to overcome the crass demands of flesh and bone, for they warp the matrix through which we perceive the world. Extend your awareness outward, beyond the self of body, to embrace the self of group and the self of humanity. The goals of the group and the greater race are transcendent, and to embrace them is to achieve enlightenment."

Lady Deirdre:

• "Eternity lies ahead of us, and behind. Have you drunk your fill?"