Leonardo da Vinci: The motive power is the cause of all life.

The motive power is the cause of all life. — Leonardo da Vinci

The motive power is the cause of all life.
Those who fall in love with practice without science are like a sailor who enter — Leonardo da Vinci
Chi non punisce il male comanda che si faccia. — Leonardo da Vinci
The memory of benefits is a frail defence against ingratitude. — Leonardo da Vinci
Tristo é lo discepolo che non avanza il suo maestro. — Leonardo da Vinci
Inspiration is never genuine if it is known as inspiration at the time. True ins — Samuel Butler
Take up an idea, devote yourself to it, struggle on in patience, and the sun wil — Swami Vivekananda
I forbid you to be cast down or depressed. It is not enough if you do not shrink — Seneca
The mass of men lead lives of quiet desperation. What is called resignation is c — Henry David Thoreau
It is the mind that maketh good or ill, That maketh wretch or happy, rich or poo — Michel de Montaigne
Many count their chickens before they are hatched; and where they expect bacon, — Miguel de Cervantes
Surplus value is exactly equal to surplus labour ; the increase of the one [is] — Karl Marx
I never apologize. — George Bernard Shaw