When the bird has flown

Got no-one to call your own

Got no place to call your home

When the bird has flown

It is in love that we are made;

In love we disappear.

Everything we call real is made of things that cannot be regarded as real.

I hear, I know.
I see, I remember.
I do, I understand.

Fortune brings in some boats that are not steered.

It is better to travel well than to arrive.

It is wrong to think that the task of physics is to find out how Nature is. 

Physics concerns what we say about Nature.

I am among those who think that science has great beauty. 

A scientist in his laboratory is not only a technician: 

he is also a child placed before natural phenomena which impress him like a fairy tale.

Onward and onward and onward I go

Where no man before me bothered to go.

I can't go back to yesterday 

because I was a different person then.

There is a kind of laughter that sickens the soul. 

Laughter when it is out of control: 

when it screams and stamps its feet, 

and sets the bells jangling in the next town. 

Laughter in all its ignorance and cruelty.

Men are the dreams of a shadow.

If you don't know where you are going, any road will get you there.

An honest man is always a child.

Whenever you find yourself on the side of the majority,
it is time to pause and reflect.