The best way to find out if you can trust somebody is to trust them.
If you’re afraid – don’t do it, – if you’re doing it – don’t be afraid.
Space is big. You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space.
The deepest sin against the human mind is to believe things without evidence.
You cannot conquer a free man. The most you can do is kill him.
Ask the right questions, and nature will open the doors to her secrets.
The best brains of the Nation may be found on the last benches of the Classroom
Spoon feeding in the long run teaches us nothing but the shape of the spoon.
It is no small art to sleep: for that purpose you must keep awake all day.
The only true wisdom is in knowing you know nothing.