Alan Guth

Physics American 1947 423 quotes

Proposed the theory of cosmic inflation, a modification of the Big Bang theory.

Most quoted

"If you ask where the energy for the Big Bang came from, the answer from inflation is that gravitational energy can be negative, and it can exactly cancel the positive energy of matter."

— from Lecture

"The inflationary universe theory says that the universe began as a tiny speck of false vacuum, which then inflated exponentially to become the enormous universe we see today."

— from Scientific paper/lecture

"The universe is like a giant puzzle, and we're slowly putting the pieces together. But sometimes we find a piece that doesn't fit, and then we have to start all over again."

— from Lecture

All quotes by Alan Guth (423)

The early universe was a hot, dense plasma.

Descriptions of the Big Bang

Inflation provides a mechanism for generating the initial conditions for the Big Bang.

Connecting inflation to Big Bang

The universe is expanding at an ever-increasing rate.

Discussions on accelerating expansion

We are all made of stardust.

Popular science talks

The universe is a grand experiment.

Philosophical musings

The future of cosmology is bright.

Optimistic outlooks

We're living in an era of unprecedented discovery.

Remarks on current scientific progress

Inflation is a very compelling idea.

Evaluations of inflation theory

The universe is governed by fundamental laws of physics.

Lectures on fundamental physics

Inflation is a theory that explains everything, and therefore nothing.

Interview/Lecture

My wife says I'm a good theoretical physicist because I'm always wrong, but I'm wrong in interesting ways.

Interview

If you're going to make a mistake, make a big one.

Lecture

The universe is expanding, and so is the number of theories about it.

Interview

Cosmology is the study of the universe, which is everything, so it's a pretty big field.

Lecture

I'm not saying I'm right, I'm just saying I'm less wrong than everyone else.

Interview

The problem with physics is that it's always changing. Just when you think you've got it figured out, someone comes along and proves you wrong.

Lecture

My job is to come up with crazy ideas and then try to prove them wrong.

Interview

The universe is a lot like a black hole: it's full of mysteries and it's hard to get out of.

Lecture

If you want to understand the universe, you have to be willing to think outside the box. And then throw the box away.

Interview

The Big Bang is a great theory, but it doesn't explain everything. For example, it doesn't explain why I can never find my car keys.

Lecture