Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.

Barring serious accidents, if you are not preoccupied with worry and you work hard, you can look forward to a reasonably lengthy existence.... Its not the hard work that kills, its the worrying that kills.

Do not say we are weak; we can do anything and everything. What can we not do? Everything can be done by us; we all have the same glorious soul, let us believe in it.

Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

There's a way to do it better - find it.

I didn't fail 1000 times. The light bulb was an invention with 1000 steps.