There will be obstacles. There will be doubters. There will be mistakes. But with hard work, there are no limits.

I've been absolutely terrified every moment of my life—and I've never let it keep me from doing a single thing I wanted to do.

You alone are enough. You have nothing to prove to anybody.

No man will ever bring out the Presidency the reputation which carries him into it.

Cowards die many times before their deaths; the valiant never taste of death but once.

There are far, far better things ahead than any we leave behind.

If you ask enough people, eventually someone will say yes.

Winners compare their achievements with their goals, while losers compare their achievements with those of other people.

A very little key will open a very heavy door.

If the highest aim of a captain were to preserve his ship, he would keep it in port forever.

Most men die at 27, we just bury them at 72.

Constant effort and frequent mistakes are the stepping stones to genius.

Creativity is often blocked to trying to be perfect. Creativity is allowing yourself to make mistakes.

Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.

You will make all kinds of mistakes; but as long as you are generous and true, and also fierce, you cannot hurt the world or even seriously distress her.

Knowledge rests not upon truth alone, but upon error also.

Against all odds and despite all the obstacles, we are going to make it.

Plant seeds of expectation in your mind; cultivate thoughts that anticipate achievement. Believe in yourself as being capable of overcoming all obstacles and weaknesses.

Obstacles are like wild animals. They are cowards but they will bluff you if they can. If they see you are afraid of them, they are liable to spring upon you; but if you look them squarely in the eye, they will sink out of sight.

Obstacles are necessary for success because in selling, as in all careers of importance, victory comes only after many struggles and countless defeats.

I have learned that success is to be measured not so much by the position that one has reached in life as by the obstacles which he has overcome while trying to succeed.

Obstacles don’t have to stop you. If you run into a wall, don’t turn around and give up. Figure out how to climb it, go through it, or work around it.

Success is determined not by whether or not you face obstacles, but by your reaction to them. And if you look at these obstacles as a containing fence, they become your excuse for failure. If you look at them as a hurdle, each one strengthens you for the next.

One would think it would be most unwise in a man to be afraid of a skeleton, since Nature has set curious and quite insuperable obstacles to his running away from it.

I find the great thing in this world is not so much where we stand, as in what direction we are moving: To reach the port of heaven, we must sail sometimes with the wind and sometimes against it—but we must sail, and not drift, nor lie at anchor.

Free will, though it makes evil possible, is also the only thing that makes possible any love or good or joy worth having.

Do not think that what is hard for you to master is humanly impossible; but if a thing is humanly possible, consider it to be within your reach.

It's the possibility of having a dream come true that makes life interesting.

So many of our dreams at first seem impossible. Then they seem improbable. And then, when we summon the will, they soon become inevitable.

You better live your best and act your best and think your best today, for today is the sure preparation for tomorrow and all the other tomorrows that follow.

The creation of a thousand forests is in one acorn.

The positive thinker see the invisible, feels the intangible, and achieve the impossible.

Man can learn nothing unless he proceeds from the known to the unknown.

How much more than is necessary do we spend in sleep, forgetting that the sleeping fox catches no poultry, and that there will be sleeping enough in the grave.

Every civilization is, among other things, an arrangement for domesticating the passions and setting them to do useful work.

The things are mighty few on earth That wishes can attain. Whate'er we want of any worth We've go to work to gain.

There is a time in every man’s education when he arrives at the conviction that envy is ignorance; that imitation is suicide; that he must take for better, for worse, as his portion; that, though the wide universe is full of good, no kernel of nourishing corn can come to him but through his toil bestowed on that plot of ground which is given to him to till.

Be true to your work, your word, and your friend.