"Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful."
Knowledge
"Do not accustom yourself to think of death as an object of terror; it is the only port of safety."
Peace
"The mind of a man is never at rest; it must be employed in something; if it be not employed in good, it will be in evil."
Creativity
"A man who waits to believe in action before taking it is the kind of man who waits to see the lights before he turns them on."
Perseverance
"There is nothing in this world constant but inconstancy."
Change
"The greatest pain in the world is not bodily suffering, but mental anguish."
Strength
"By the time we finish celebrating our victories, we often find ourselves defeated in new battles."
Leadership
"Money cannot buy happiness, but it can remove many of the obstacles to it."
Money
"Wonder is the effect of ignorance; when we are fully informed of a thing, we cease to wonder at it."
Wisdom
"The natural flights of the human mind are not from pleasure to pleasure, but from hope to hope."
Imagination
"Silence is the virtue of the fool, but he who knows when to speak is wise."
Patience
"A man is not completely born until he is dead."
Life
"The world will not be deceived; it is too old, it has seen too much."
Truth
"Advertising is the rattling of a stick inside a swill bucket."
Art
"The true genius is a mind of large general powers, accidentally determined to some particular direction."
Creativity
"To flee vice is the beginning of virtue, and to flee folly is the beginning of wisdom."
Education
"It matters not how a man dies, but how he lives; the act of dying is not of importance, it lasts so short a time."
Death
"We are always hearing about the sins of commission, but I wish we heard more about the sins of omission."
"Mankind should not despise those who endure hardship with courage and dignity."
Courage
"A scholar is a man who has read everything and forgotten nothing; a fool is a man who has read nothing and remembered everything."
Knowledge
"The real tragedy of life is that many never discover what they are capable of becoming."
"The art of being happy lies in the power of extracting happiness from common things."
Happiness
"Example is always more efficacious than precept."
Leadership
"To think is to be alive; to cease thinking is to be dead."
Philosophy
"There is no kind of idleness by which we are so easily seduced as that which dignifies itself by the appearance of employment."
Work
"The desire to accumulate knowledge is one of the few desires which increase in the gratification of them."
"The happiness of life is made up of minute fractions; the little soon forgotten charities of a kiss or a smile, a kind word or a generous act."
Kindness
"Fear is the passion of slaves; freedom belongs to the brave."
Freedom
"A man's own observation, what he comes to see and understand about himself and his world, forms much better wisdom than any amount of instruction."
Wisdom
"The measure of intelligence is the ability to change."