"Every great decision creates ripples - like a huge boulder dropped in a lake. The ripples merge, rebound off the banks in unforseeable ways. The heavier the decision, the larger the waves, the more uncertain the consequences. "
The Doctor (in Remembrance of the Daleks)
"Homo sapiens. What an inventive, invincible species. It's only been a few million years since they crawled up out of the mud and learned to walk. Puny, defenseless bipeds. They've survived flood, famine and plague. They've survived cosmic wars and holocausts. And now, here they are, out among the stars, waiting to begin a new life. Ready to outsit eternity. "
The Doctor (in The Ark in Space)
"The very powerful and the very stupid have one thing in common: they don't alter their views to fit the facts, they alter the facts to fit the views, which can be uncomfortable, if you happen to be one of the facts that needs altering."
The Doctor (in The Face of Evil)
"There are worlds out there where the sky is burning, and the sea's asleep, and the rivers dream; people made of smoke and cities made of song. Somewhere there's danger, somewhere there's injustice, somewhere else the tea's getting cold."
The Doctor (in Survival)
"One day, I shall come back. Yes, I shall come back. Until that day, there must be no regrets, no tears, no anxieties. Just go forward in all your beliefs, and prove to me that I am not mistaken in mine."
The Doctor (in Dalek Invasion of Earth)
