Time, like space, although a dimension in itself, also has dimensions of its own.
“The Space Museum” · Season 2, Episode 7
In this episode: Ian Chesterton (2), First Doctor (1), Dalek (1), Barbara (1), Vicki (1)
Doctor, why do you always show the greatest interest in the least important things?
The least important things, sometimes, my dear boy, lead to the greatest discoveries.
The Doctor's curious, that means we stay.
Doctor, I'd just come face to face with myself! I wasn't counting the buttons on my jacket!
Our greatest enemies have left the planet Xeros. They are once again in time and space.
D2Dalek 2
They cannot escape! Our time machine will soon follow them. They will be exterminated! Exterminated! Exterminated!
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