Dmitri Mendeleev

There is nothing in this world that I fear to say.

The magnitude of the atomic weight determines the character of the element, just as the magnitude of the molecule determines the character of a compound body.

There exists everywhere a medium in things, determined by equilibrium.

America will never be destroyed from the outside. If we falter and lose our freedoms, it will be because we destroyed ourselves.

My feeling for reality TV isn't ironic, guilty, or apologetic. Reality TV is one of the few remaining modes of popular entertainment in which characterization is permitted as plot.

Nothing that is worth doing can be achieved in a lifetime; therefore we must be saved by hope.