You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself. That is something you have charge of.

Take time to deliberate, but when the time for action comes, stop thinking and go in.

It is no use saying 'we are doing our best.' You have got to succeed in doing what is necessary.

Workers of the world unite; you have nothing to lose but your chains.

There is nothing impossible to him who will try.

Dictionary is the only place that success comes before work. Hard work is the price we must pay for success. I think you can accomplish anything if you're willing to pay the price.

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.

You can't just ask customers what they want and then try to give that to them. By the time you get it built, they'll want something new.

Nothing will work unless you do.

Price is what you pay. Value is what you get.

I readily absorb ideas from every source, frequently starting where the last person left off

Success is never final. Failure is never fatal. It s courage that counts.

Opportunity is missed by most people because it is dressed in overalls and looks like work.

Success is steady progress toward one's personal goals

If your business is only to sweep a crossing, remember it is your duty to make that crossing the best swept of the world.

Innovation distinguishes between a leader and a follower.

Purity, patience, and perseverance are the three essentials to success and, above all, love.

Boredom is one of the most blissful feelings.

There is one weakness in people for which there is no remedy. It is the universal weakness of lack of ambition.

Thinking is the hardest work there is, which is probably the reason so few engage in it.

Tell the audience what you're going to say, say it; then tell them what you've said.