Bring forward what is true, Write it so that it is clear, Defend it to your last breath!

If you are out to describe the truth, leave elegance to the tailor.

Nothing is more practical than a good theory.

Available energy is the main object at stake in the struggle for existence and the evolution of the world.

A mathematician will recognise Cauchy, Gauss, Jacobi or Helmholtz after reading a few pages, just as musicians recognise, from the first few bars, Mozart, Beethoven or Schubert.

The life contest is primarily a competition for available energy.

Thermodynamics, correctly interpreted, does not just allow Darwinian evolution; it favors it.

Which is more remarkable fact about America: that millionaires are idealists or idealists become millionaires.

In my view all salvation for philosophy may be expected to come from Darwin's theory

Bring forward what is true. Write it so that it is clear. Defend it to your last breath.

What you were is yesterday.What you are is now.What you can be is tomorrow.What you decide to be is today.

Intuitions come first, strategic reasoning second.

The day we forget the horror, Sam, we will repeat it. Never forget your past. It will make you less human, less than human.

In every failure, there's the seed to even greater success. However, people waste their time complaining, instead of looking for the seed among the rubble of what was.

The city seen from the Queensboro Bridge is always the city seen for the first time, in its first wild promise of all the mystery and the beauty in the world.

My cancer is me. The tumors are made of me. They’re made of me as surely as my brain and my heart are made of me. It is a civil war with a predetermined winner

I shop more than most women.

I'm a lover of lists and five-year plans and Excel spreadsheets. Any way that I can have any control over the direction my life is going, I gravitate towards that.

Duty grows everywhere--like children, like grass.

I knew that I was learning one of the most important lessons of my life: that instead of waiting for the perfect opportunity, I should work toward a realization that every opportunity is perfect.