Leonardo da Vinci

Time stays long enough for anyone who will use it.

I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection. 'Tis the business of little minds to shrink, but they whose heart is firm, and whose conscience approves their conduct, will pursue their principles unto death.

Tears come from the heart and not from the brain.

Nothing strengthens authority so much as silence.

The smallest feline is a masterpiece.

Water is the driving force of all nature.

The greatest deception men suffer is from their own opinions.

Who sows virtue reaps honor.

As a well-spent day brings happy sleep, so a life well spent brings happy death.

Learning never exhausts the mind.

Intellectual passion drives out sensuality.

There are three classes of people: those who see, those who see when they are shown, those who do not see.