The human voice is the organ of the soul.

Readers are plentiful: 

thinkers are rare.

Rule-following, legal precedence, and political consistency 

are not more important than 

right, justice and plain common-sense.

All that we are not 

stares back 

at what we are.

For I am not so enamoured of my own opinions 

that I disregard what others may think of them.

Speech is human nature itself, 

with none of the artificiality of written language.

In questions of science, 

the authority 

of a thousand 

is not worth

 the humble reasoning 

of a single individual.

Each pursues his own theory, 

little solicitous to correct or improve it 

by an attention to what is advanced by his opponents.

A scientist's aim 

in a discussion with his colleagues 

is not to persuade, 

but to clarify.

One of the great problems of philosophy 

is the relationship between 

the realm of knowledge and the realm of values. 

Knowledge is what is; 

values are what ought to be.

We forge the chains we wear in life.

The best live among us in disguise.

The essence of the beautiful is unity in variety.

Irresponsibility is part of the pleasure of all art; 

it is the part the schools cannot recognise.