True enjoyment comes 

from activity of the mind 

and exercise of the body; 

the two are ever united.

If nature were not beautiful, 

it would not be worth knowing, 

and if nature were not worth knowing, 

life would not be worth living.

Let each man exercise the art he knows.

The more elaborate our means of communication, 

the less we communicate.

The noblest pleasure is the joy of understanding.

A little knowledge is a dangerous thing. 

So is a lot.

Art is the most intense mode of individualism that the world has known.

I am always doing that which I cannot do, 

in order that I may learn how to do it.

Like as the waves make towards the pebbl'd shore, 

so do our minutes, 

hasten to their end.

Peace is not an absence of war, 

it is a virtue, a state of mind, 

a disposition for benevolence, confidence, justice.

All of life 

in its complexity and beauty 

is forever minted 

in the gold of words.

We have found 

that where science has progressed the farthest, 

the mind has but regained from nature 

that which the mind put into nature.

A picture is a poem without words.

Vision is the art of seeing 

what is invisible to others.