“Anyone who conducts an argument by appealing to authority is not using his intelligence he is just using his memory.”
More from Leonardo da Vinci on Wisdom
“Fine gold is recognized when it is tested.”
“No counsel is more sincere than that given on ships which are in danger.”
“He who thinks little errs much…”
“Nothing strengthens authority so much as silence.”
“poor is the pupil who does not surpass his master.”
“He who wishes to be rich within a day, will be hanged within a year.”
“You can have no dominion greater or less than that over yourself.”
“Reprove your friend in secret and praise him in public.”
“Just as food eaten without appetite is a tedious nourishment, so does study without zeal damage the memory by not assimilating what it absorbs.”
“Knowledge of the past and of the places of the earth is the ornament and food of the mind of man.”
Others on Wisdom
Sun Tzu
30 quotes“Do not swallow bait offered by the enemy. Do not interfere with an army that is returning home.”
Dalai Lama
22 quotes“Compassion is the radicalism of our time.”
Cervantes
20 quotes“A closed mouth catches no flies.”
Aesop
19 quotes“Little by little does the trick.”
Confucius
19 quotes“The gem cannot be polished without friction nor man perfected without trials.”
Ben Franklin
18 quotes“Be slow in choosing a friend, slower in changing.”
Napoleon
16 quotes“Ability is of little account without opportunity.”
Cicero
15 quotes“Great is the power of habit. It teaches us to bear fatigue and to despise wounds and pain.”
George Washington
14 quotes“Let your Discourse with Men of Business be Short and Comprehensive.”
Rudyard Kipling
14 quotes“I keep six honest serving men. (They taught me all I know) Their names are What and Why and When and How and Where and...”
Khalil Gibran
14 quotes“Perplexity is the beginning of knowledge.”
George R.R. Martin
14 quotes“This was how an enemy should be dealt with: with a dagger, not a declaration.”