Extraordinary claims require extraordinary evidence.

Somewhere, something incredible is waiting to be known.

It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.

Imagination will often carry us to worlds that never were. But without it we go nowhere.

I don't want to believe. I want to know.

The absence of evidence is not the evidence of absence.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.

For small creatures such as we the vastness is bearable only through love.

You have to know the past to understand the present.

Love yourself enough to take care of your health of mind, body, and soul as a top priority, then you'lll be fit to face anything.

You can maintain power over people, as long as you give them something. Rob a man of everything, and that man will no longer be in your power.

As much as we may want to withdraw into a world of pure problem solving, we have to acknowledge that the most successful architectures are the ones you can actually convince someone to implement.

I enjoy growth; I enjoy having a lot of different experiences. And I don't think I am the kind of guy who'd like to do the same thing every day for 40 years.

You do not know what wars are going on down there where the spirit meets the bone.

Man can create nothing which he does not first conceive in THOUGHT.

If my detractors knew me better they would hate me even more.

I have cherished the ideal of a democratic and free society in which all persons live together in harmony and with equal opportunities.

Every man should stay within his own fortune. [Lat., Intera fortunam quisque debet manere suam.]

War can only be qualified by its object, and there is neither foreign war nor civil war, there is only just or unjust war.