Duty Quote by Charles Dickens

No man learns to know his inmost nature by introspection, for he rates himself sometimes too low, and often too high, by his own…

— Johann Wolfgang von Goethe

Nothing is so powerful as an insight into human nature . . . what compulsions drive a man, what instincts dominate his action .…

— Anonymous

No man's abilities are so remarkably shining as not to stand in need of a proper opportunity, a patron, and even the praises of…

— Baltasar Gracian

It seems to me that man is made to act rather than to know: the principles of things escape our most persevering researches.

— Frederick the Great

I know of no more encouraging fact than the unquestionable ability of man to elevate his life by conscious endeavor.

— Henry David Thoreau

It is unavoidable that if we learn more about a great man's life, we shall also hear of occasions on which he has done…

— Sigmund Freud

Man is effective in the world not only through what he does, but above all through what he is.

— Rudolf Steiner

In overstepping our limitations, in touching the extreme boundaries of man's world, we have come to know something of its true splendor,

— Maurice Herzog

Only with the ultimate knowledge of all things will man have come to know himself. For things are but the boundaries of man.

— Friedrich Nietzsche

Man is pre-eminently endowed with the power of voluntarily and consciously determining his own point of view.

— Ernst Mach

Every human has enough personal power and the ability to change the direction of his life, he only needs to look within and identify…

— Senora Roy

Every man is prompted by the love of himself to imagine that he possesses some qualities, superior, either in kind or degree, to those…

— Samuel Johnson