While you are alone you are entirely your own master and if you have one companion you are but half your own, and the less so in proportion to the indiscretion of his behavior.

The truth of things is the chief nutriment of superior intellects.

When taking a selfie, remember the most natural pose is still best

Those who condemn the supreme certainty of mathematics feed on confusion, and can never silence the contradictions of the sophistical sciences which lead to eternal quackery.

The color of the object illuminated partakes of the color of that which illuminates it.

Obstacles cannot crush me. Every obstacle yields to stern resolve. He who is fixed to a star does not change his mind.

Nature varies the seed according to the variety of the things she desires to produce in the world.