It is a cursed evil to any man to become as absorbed in any subject as I am in mine

One must be sane to think clearly, but one can think deeply and be quite insane.

Never make excuses. Your friends don't need them and your foes won't believe them.

I don't want to achieve immortality through my work... I want to achieve it through not dying.

Our greatest glory is not in never failing, but in rising up every time we fail.

Talent hits a target no one else can hit; Genius hits a target no one else can see.

If you go to work on your goals, your goals will go to work on you. If you go to work on your plan, your plan will go to work on you. Whatever good things we build end up building us.

Real success can only come if there is a change in our societies and in our economics and in our politics.

You may have to fight a battle more than once to win it.

Success comes to those who become success conscious. Failure comes to those who indifferently allow themselves to become failure conscious.

True progress quietly and persistently moves along without notice.

If you treat people right they will treat you right - ninety percent of the time.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal.

Whether it's Google or Apple or free software, we've got some fantastic competitors and it keeps us on our toes.

The production of too many useful things results in too many useless people.

You can't make souffle rise twice.

And that is the reason why this victory is great, because different players have made contributions to the win.

I have not failed. I've just found 10,000 ways that won't work.

For it is commonly said: accomplished labours are pleasant.

Discipline is the bridge between goals and accomplishment.

When inspiration does not come to me, I go halfway to meet it.