To understand hydrogen is to understand all of physics.

When you teach your son, you teach your son's son.

In times of crisis, it is of utmost importance to keep one's head.

Do not seek perfection in a changing world. Instead, perfect your love.

Do not spit into the well, you'll get drunk

Only one thing’s sadder than remembering you were once free, and that’s forgetting you were once free.

We are best friends. Always remember that if you fall, I will pick you up. after I finish laughing.