The only source of knowledge is experience.

Research is creating new knowledge.

Perseverance is not a long race; it is many short races one after the other.

Be brave. Take risks. Nothing can substitute experience.

Out of difficulties grow miracles.

Quality is everyone's responsibility. 

Set your goals high, and don't stop till you get there.

There is nothing permanent except change.

When all else is lost, the future still remains.

Where there is no vision, there is no hope.

Life is the art of drawing without an eraser.

Risk comes from not knowing what you're doing.

Someone is sitting in the shade today because someone planted a tree a long time ago.

The key is to keep company only with people who uplift you, whose presence calls forth your best.

Good, better, best. Never let it rest. 'Til your good is better and your better is best.

True wealth is not of the pocket, but of the heart and of the mind.

The soul that is within me no man can degrade.

Each day, I come in with a positive attitude, trying to get better.

Do your work with your whole heart, and you will succeed - there's so little competition.

With the new day comes new strength and new thoughts.

Happiness is not something ready made. It comes from your own actions.

Things do not happen. Things are made to happen

Accept the challenges so that you can feel the exhilaration of victory.

Put your heart, mind, and soul into even your smallest acts. This is the secret of success.

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

Work hard, stay positive, and get up early. It's the best part of the day.

The science of today is the technology of tomorrow.

When something is important enough, you do it even if the odds are not in your favor.

Do your work with your whole heart, and you will succeed - there's so little competition.

Start every day off with a smile and get it over with.

An early-morning walk is a blessing for the whole day.

Rather fail with honor than succeed by fraud.

Life is short, and if we enjoy every moment of every day, then we will be happy no matter what happens or what changes along the way.

There are two great days in a person's life - the day we are born and the day we discover why.

"Develop success from failures. Discouragement and failure are two of the surest stepping stones to success."

You must take action now that will move you towards your goals. Develop a sense of urgency in your life.

The best way to find yourself is to lose yourself in the service of others.

Never give up. Today is hard, tomorrow will be worse, but the day after tomorrow will be sunshine.

The secret of joy in work is contained in one word -- excellence. To know how to do something well is to enjoy it."

Never say never, because limits, like fears, are often just an illusion.

Everyone has highs and lows that they have to learn from, but every morning I start off with a good head on my shoulders, saying to myself, 'It's going to be a good day!'.

Setting goals is the first step in turning the invisible into the visible.

At the end of the day, the most overwhelming key to a child's success is the positive involvement of parents.

Success comes to those who dedicate everything to their passion in life. To be successful, it is also very important to be humble and never let fame or money travel to your head.

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

With the new day comes new strength and new thoughts.

Never retreat. Never explain. Get it done and let them howl.

You need to overcome the tug of people against you as you reach for high goals.

"If you cannot do great things, do small things in a great way." 

Life is like riding a bicycle. To keep your balance, you must keep moving. Albert Einstein