A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.
An idea that is not dangerous is unworthy of being called an idea at all.
Art is dangerous. It is one of the attractions: when it ceases to be dangerous you don't want it.
“An error is the more dangerous in proportion to the degree of truth which it contains.”
An error is the more dangerous the more truth it contains.
“My mother groaned, my father wept, into the dangerous world I leapt.”
It is dangerous to be right when the government is wrong.
Nothing in all the world is more dangerous than sincere ignorance and conscientious stupidity.
A world without nuclear weapons would be less stable and more dangerous for all of us.
Standing in the middle of the road is very dangerous; you get knocked down by the traffic from both sides.
Fools and wise-folk are alike harmless. It is the half-wise, and the half-foolish, who are the most dangerous.
I'm a relatively respectable citizen. Multiple felon perhaps, but certainly not dangerous.
Convictions are more dangerous foes of truth than lies.
The master said, learning without thought is naught; thought without learning is dangerous
When you start to live outside yourself, it's all dangerous.
Learning without reflection is a waste. Reflection without learning is dangerous.
The greater the power, the more dangerous the abuse.