In summary, all great work is the fruit of patience and perseverance, combined with tenacious concentration on a subject over a period of months or years.

The brain is a world consisting of a number of unexplored continents and great stretches of unknown territory.

Every man if he so desires becomes sculptor of his own brain.

The worst part is not in making a mistake but in trying to justify it, instead of using it as a heaven-sent warning of our mindlessness or our ignorance.

Unfortunately, nature seems unaware of our intellectual need for convenience and unity, and very often takes delight in complication and diversity.

There are no small problems. Problems that appear small are large problems that are not understood

It is idle to dispute with old men. Their opinions, like their cranial sutures, are ossified.

In adult centers the nerve paths are something fixed, ended, immutable. Everything may die, nothing may be regenerated.

That which enters the mind through reason can be corrected. That which is admitted through faith, hardly ever.

To know the brain...is equivalent to ascertaining the material course of thought and will, to discovering the intimate history of life in its perpetual duel with external forces.

Nothing inspires more reverence and awe in me than an old man who knows how to change his mind.

Honest criticism and sensible appreciation are directed not upon the poet but upon the poetry.

Men cannot help that it is their nature to respond to the lewd, the salacious, and the vile. They will have difficulty doing otherwise until they are born again.

I've only just arrived, Kate. It may surprise you to learn that you were my top priority.

Hephaestus glowered up at us. “I didn’t make you, did I?”Uh, ” Annabeth said, “no, sir.”Good, ” the god grumbled. “Shoddy workmanship.

When children attend schools that place a greater value on discipline and security than on knowledge and intellectual development, they are attending prep schools for prison.

God is more ready to forgive me than I am ready to offend.

Pray anyway. Who knows what God can do through your prayer?

But no, I don't think I'm particularly drawn to the period roles or the medieval roles.

Guys will take one pair of jeans, five T-shirts and three pair of socks and that'll get you by for 10 weeks.

What we link to pleasure and what we link to pain determines our destiny.