"It is useful to constantly observe, note,..." - Quote by Leonardo Da Vinci

“One's thoughts turn towards Hope.”

“Time abides long enough for those who make use of it.”

“Fire destroys all sophistry, that is deceit; and maintains truth alone, that is gold.”

“My eye is educated to discover anything on the ground, as chestnuts, etc. It is probably wholesomer to look at the ground much than at the heavens.”

“Common sense is not too common.”

“He was distracted by a giggle, and turned to see a rare sight: a girl.”

“Our age is essentially one of understanding and reflection, without passion, momentarily bursting into enthusiasm and shrewdly relapsing into repose.”

“A fact: one picks it up and reads it, and puts it down, and there is an end to it. But an idea! That one may pick up, and reflect upon, and oppose, and expand, and so pass a delightful afternoon altogether.”

“If one does not reflect, one thinks oneself master of everything; but when one does reflect, one realizes that one is master of nothing.”