We shall require a substantially new manner of thinking if mankind is to survive.
The truth is not for all men but only for those who seek it.
A taste for truth at any cost is a passion which spares nothing.
Nothing is more despicable than respect based on fear.
The question isn't who is going to let me; it's who is going to stop me.
Poverty is the parent of revolution and crime.
To perceive is to suffer.
A man without ethics is a wild beast loosed upon this world.
No great mind has ever existed without a touch of madness.
The educated differ from the uneducated as much as the living differ from the dead.
We shall require a substantially new manner of thinking if mankind is to survive.
We cannot solve our problems with the same thinking we used when we created them.
Anyone who can only think of one way to spell a word obviously lacks imagination.