Just because something doesn't do what you planned it to do doesn't mean it's useless.
Tell the audience what you're going to say, say it; then tell them what you've said.
All your dreams can come true if you have the courage to pursue them
A person who never made a mistake never tried anything new.
It is no use saying 'we are doing our best.' You have got to succeed in doing what is necessary.
I have not failed. I've just found 10,000 ways that won't work.
The finest task for an Engineer – to survey, to plan, to suggest resources and material, assemble them for task in hand, implement and produce results.
When asked, 'How do you write?' I invariably answer, 'one word at a time.'
I'm a slow walker, but I never walk back.
Take time to deliberate, but when the time for action comes, stop thinking and go in.
There is nothing impossible to him who will try.
It's a terrible thing to look over your shoulder when you are trying to lead - and find no one there
Without a sense of urgency, desire loses its value.
The production of too many useful things results in too many useless people.
When you play, play hard; when you work, don't play at all.
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.
When you know what you want, and want it bad enough, you will find a way to get it.
Few things are impossible to diligence and skill. Great works are performed not by strength, but perseverance.
Once you start a working on something, don't be afraid of failure and don't abandon it. People who work sincerely are the happiest.
Good actions give strength to ourselves and inspire good actions in others.