A scientist is a mimosa when he himself has made a mistake, and a roaring lion when he discovers a mistake of others.

I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.

James Clerk Maxwell's [work is the] most profound and the most fruitful.

This change in the conception of reality is the most profound and the most fruitful that physics has experienced since the time of Newton. Refering to James Clerk Maxwell's contributions to physics.

I am enough of an artist to draw freely upon my imagination.

This has been done elegantly by Minkowski; but chalk is cheaper than grey matter, and we will do it as it comes.

Everything has changed, except our way of thinking.