Without courage, wisdom bears no fruit.

Boredom is the root of all evil - the despairing refusal to be oneself.

A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.

Stubborn and ardent clinging to one's opinion is the best proof of stupidity.

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

Throw your heart over the fence and the rest will follow.

Reflect upon your present blessings, of which every man has many; not on your past misfortunes, of which all men have some.

Attitude, not Aptitude, determines Altitude.

Whatever it is you're seeking won't come in the form you're expecting.

Those who see the invisible can do the impossible.

To live is not merely to breathe; it is to act; it is to make use of our organs, senses, faculties - of all those parts of ourselves which give us the feeling of existence

Rest satisfied with doing well, and leave others to talk of you as they please.

Reality leaves a lot to the imagination.

One who deceives will always find those who allow themselves to be deceived.

Experience is merely the name men gave to their mistakes.

Blessed are they who hunger and thirst for righteousness for they shall be satisfied.

Tis very certain the desire of life prolongs it.

Science is organized knowledge. Wisdom is organized life.

Great acts are made up of small deeds.

Great dreams of great dreamers are always transcended.

We are all born ignorant, but one must work hard to remain stupid