Ernst Mach Quote

That branch of physics which is at once the oldest and the simplest and which is therefore treated as introductory to other departments of this science, is concerned with the motions and equilibrium of masses. It bears the name of mechanics.

The Science of Mechanics (5th edition), Introduction (p. 1)

That branch of physics which is at once the oldest and the simplest and which is therefore treated as introductory to other departments of this...

That branch of physics which is at once the oldest and the simplest and which is therefore treated as introductory to other departments of this...

That branch of physics which is at once the oldest and the simplest and which is therefore treated as introductory to other departments of this...

That branch of physics which is at once the oldest and the simplest and which is therefore treated as introductory to other departments of this...