No law of nature, however general, has been established all at once; its recognition has always been preceded by many presentiments.

The most all penetrating spirit before which will open the possibility of tilting not tables, but planets, is the spirit of free human inquiry. Believe only in that.

Work, look for peace and calm in work: you will find it nowhere else.

I saw in a dream a table where all the elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper.

Knowing how contented, free, and joyful is life in the world of science, one fervently wishes that many would enter its portals.

Certain characteristic properties of elements can be foretold from their atomic weights.

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.

No one nor anything can silence me.

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

Elements which are similar as regards their chemical properties have atomic weights which are either of nearly the same value (eg. Pt, Ir, Os) or which increase regularly (eg. K, Ru, Cs).

If all the elements are arranged in the order of their atomic weights, a periodic repetition of properties is obtained. This is expressed by the law of periodicity.

I don't think there's anything man wasn't meant to know. There are just some stupid things that people shouldn't do.

Everything that can be invented has already been invented.

There's tons of external and internal pressures that we deal with but live for God and you'll be alright.

Popularity is totally overrated.

When we stop to count our blessings rather than focusing on our predicament, our attitude will be able to help us cope with our situation more productively.

When you're doing martial arts, you feel like you can master certain skills and be so much more in control of who you are, so that really appealed to me.

I will never be a leader of men, and neither do I want to be one, and neither do I want to be led. I thought: I want to lead only myself.

America is, and always will be, a shining city on a hill.

Respect the man of noble races other than your own, who carries out, in a different place, a combat parallel to yours - to ours. He is your ally. He is our ally, be he at the other end of the world.

That which is most personal, is most interesting.