"All our knowledge is the offspring of..." - Quote by Leonardo Da Vinci

“Small rooms or dwellings set the mind in the right path, large ones cause it to go astray.”

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

“It is useful to constantly observe, note, and consider.”

“It is only the fundamental conceptions of psychology which are of real value to a teacher.”

“Not to know what has been transacted in former times is to be always a child. If no use is made of the labors of past ages, the world must remain always in the infancy of knowledge.”

“He who knows best knows how little he knows.”

“I can see in what you call the dark, but which to me is golden.”

“The lover of nature is he whose inward and outward sensesare still truly adjusted to each other.”

“I swear the earth shall surely be complete to him or her who shall be complete,The earth remains jagged and broken only to him or her who remains jagged and broken.”