Persistence is the most powerful force on earth, it can move mountains.

I cannot seriously believe in it [quantum theory] because the theory cannot be reconciled with the idea that physics should represent a reality in time and space, free from spooky actions at a distance [spukhafte Fernwirkungen].

There are actually two approaches to reside your daily life. One is as if absolutely nothing is really a miracle. The other is as if every little thing is a wonder

Hell! there ain't no rules around here! We are tryin' to accomplish somep'n!

It is nothing short of a miracle that modern methods of teaching have not yet entirely strangled that sacred spirit of curiosity and inquiry, for this delicate plant needs freedom no less than stimulation.

I refuse to engage in an intellectual battle with an unarmed man.

Do things sound better in your head before you say them, or do you even run them through there first?