“Three great forces rule the world: stupidity, fear and greed.”

Genius is 1% talent and 99% percent hard work.

If you can’t explain it to a six year old, you don’t understand it yourself.

Imagination is everything. It is the preview of life’s coming attractions.

Once you can accept the universe as matter expanding into nothing that is something, wearing stripes with plaid comes easy.

I never made one of my discoveries through the process of rational thinking

The woman who follows the crowd will usually go no further than the crowd. The woman who walks alone is likely to find herself in places no one has ever been before.

The difference between stupidity and genius is that genius has its limits.

I never think of the future – it comes soon enough.

The most beautiful experience we can have is the mysterious. It is the fundamental emotion that stands at the cradle of true art and true science.

Play is the highest form of research.

Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.

The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking.

Everything that exists in your life, does so because of two things: something you did or something you didn’t do.

I must be willing to give up what I am in order to become what I will be.

I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.

God does not play dice with the universe.

Boredom is therefore a vital problem for the moralist, since at least half the sins of mankind are caused by the fear of it.

Sometimes I live in fear. But when I have to take chances about people I love, relationships, my daughter and immediate family, those decisions are easy.

Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric.

The soul attracts that which it secretly harbors; that which it loves, and also that which it fears.

Courage consists not in hazarding without fear, but being resolutely minded in a just cause.

Rather I fear on the contrary that while we banish painful thoughts we may banish memory as well.

Terrorism is the best political weapon for nothing drives people harder than a fear of sudden death.

Fear and anxiety are consequences of your imagination running wild. You are suffering a situation that may never happen.