Avoid the precepts of those thinkers whose reasoning is not confirmed by experience.

Leonardo da Vinci

AvoidPreceptsThinkersReasoning...+2

Young men, hear an old man to whom old men hearkened when he was young.

Augustus

YoungMenHearHearkened

India has known the innocence and insouciance of childhood, the passion and abandon of youth, and the ripe wisdom of maturity that comes from long experience of pain and pleasure; and over and over a gain she has renewed her childhood and youth and age.

Jawaharlal Nehru

IndiaInnocenceInsoucianceChildhood...+10

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

Leonardo da Vinci

ScienceErrorsExperienceMother...+2

Nothing strengthens authority so much as silence.

Leonardo da Vinci

AuthoritySilenceStrengthens

Wisdom is the daughter of experience.

Leonardo da Vinci

WisdomDaughterExperience