The mind is a superb instrument if used rightly. Used wrongly, however, it becomes very destructive. To put it more accurately... you usually don't use it at all. It uses you.

You sort of start thinking anything's possible if you've got enough nerve.

A good goal is like a strenuous exercise - it makes you stretch.

Science is not only compatible with spirituality; it is a profound source of spirituality.

Of all the things I`ve lost I miss my mind the most.

Our greatest foes - and whom we must chiefly combat - are within.

A mediocre idea that generates enthusiasm will go further than a great idea that inspires no one.

There are books of which the backs and covers are by far the best parts.

Genius is sorrow's child.

Rich men's houses are seldom beautiful, rarely comfortable, and never original. It is a constant source of surprise to people of moderate means to observe how little a big fortune contributes to Beauty.

You don't have to be the Dalai Lama to tell people that life's about change.

I have no idea. People who boast about their IQ are losers.

No man for any considerable period can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

No one is useless in this world who lightens the burdens of another.

I used to desire many, many things, but now I have just one desire, and thats to get rid of all my other desires.

All men are liable to error; and most men are, in many points, by passion or interest, under temptation to it.

All the perplexities, confusion and distress in America arise, not from defects in their Constitution or Confederation, not from want of honor or virtue, so much as from the downright ignorance of the nature of coin, credit and circulation.

When the student is ready, the teacher will appear.

I have great faith in fools; self-confidence my friends call it.

Quote me as saying I was mis-quoted.

The future ain't what it used to be.