Teach thy tongue to say 'I do not know', 

and thou shalt progress.

The secret of happiness is: 

Find something more important than you are 

and dedicate your life to it.

Follow your bliss 

and the universe will open doors 

where there were only walls.

Psychoanalysts believe that the only 'normal' people 

are those who cause no trouble 

either to themselves 

or anyone else.

Evil is knowing better, but willingly doing worse.

Civilisation consists in the multiplication and refinement of human wants.

The strongest man in the world is he who stands most alone.

The past is malleable and flexible, 

changing as our recollection 

interprets and re-explains 

what has happened.

What I have known 

with respect to myself, 

has tended much to lessen 

both my admiration, 

and my contempt, 

of others.

So long as we use a certain language, 

all questions that we can ask 

will have to be formulated in it 

and will thereby confirm the theory of the universe 

which is implied in the vocabulary and structure of the language.

Authority has every reason to fear the sceptic, 

for authority can rarely survive in the face of doubt.

Intuition enlightens 

and so links up with pure thought. 

They together become an intelligence 

which is not simply of the brain, 

which does not calculate, 

but feels and thinks.

All living beings, 

not just animals, 

but plants and microorganisms, 

perceive. 

To survive, 

an organic being must perceive — 

it must seek, or at least recognise, food 

and avoid environmental danger.

I believe much trouble would be saved 

if we opened our hearts more.

The cause of justice is the cause of humanity. 

Its advocates should overflow with universal good will. 

We should love this cause, 

for it conduces to the general happiness of mankind.

It is rather fantastic to realise 

that the laws of physics can describe 

how everything was created in a random quantum fluctuation out of nothing, 

and how over the course of 15 billion years, 

matter could organise in such complex ways 

that we have human beings sitting here, talking, 

doing things intentionally.