No sensible decision can be made any longer 

without taking into account 

not only the world as it is, 

but the world as it will be.

Writing, to me, is simply thinking through my fingers.

Never let your sense of morals get in the way of doing what's right.

There is a single light of science, 

and to brighten it anywhere 

is to brighten it everywhere.

Self-education is, 

I firmly believe, 

the only kind of education there is.

A subtle thought that is in error 

may yet give rise to fruitful inquiry 

that can establish truths of great value.

The true delight is in the finding out 

rather than in the knowing.

If knowledge can create problems, 

it is not through ignorance that we can solve them.

The saddest aspect of life right now is 

that science gathers knowledge faster 

than society gathers wisdom.