Problems are not stop signs, they are guidelines.

There is always room at the top.

We aim above the mark to hit the mark.

If opportunity doesn't knock, build a door.

The true method of knowledge is experiment.

Knowledge is knowing that we cannot know.

Progress is impossible without change, and those who cannot change their minds cannot change anything.

Knowledge has to be improved, challenged, and increased constantly, or it vanishes.

If you don't have time to do it right, when will you have time to do it over?

If you don't like something, change it. If you can't change it, change your attitude.

If the only prayer you ever say in your entire life is thank you, it will be enough.

There is nothing permanent except change.

Great things are done by a series of small things brought together.

If there is no struggle, there is no progress.

Be sure you put your feet in the right place, then stand firm.

Hold fast to dreams, for if dreams die, life is a broken-winged bird that cannot fly.

There is only one corner of the universe you can be certain of improving, and that's your own self.

Always continue the climb. It is possible for you to do whatever you choose, if you first get to know who you are and are willing to work with a power that is greater than ourselves to do it.

Learn from the past, set vivid, detailed goals for the future, and live in the only moment of time over which you have any control: now.

We have two ears and one mouth so that we can listen twice as much as we speak.

Few men have virtue to withstand the highest bidder.

'Tis not enough to help the feeble up, but to support them after.

Vanity working on a weak head, produces every sort of mischief.

Change your life today. Don't gamble on the future, act now, without delay.

The only true wisdom is in knowing you know nothing.

Failures, repeated failures, are finger posts on the road to achievement. One fails forward toward success.

Life is 10% what happens to you and 90% how you react to it.

If you want to succeed you should strike out on new paths, rather than travel the worn paths of accepted success.

The past cannot be changed. The future is yet in your power.

Early to bed and early to rise makes a man healthy, wealthy and wise.

Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better.

Honesty is the first chapter in the book of wisdom.

It is never too late to be what you might have been.

All our dreams can come true, if we have the courage to pursue them.

A leader is one who knows the way, goes the way, and shows the way.

You can't cross the sea merely by standing and staring at the water.

It is far better to be alone, than to be in bad company.

Many of life's failures are people who did not realize how close they were to success when they gave up.

Never give up, for that is just the place and time that the tide will turn.

Strength and growth come only through continuous effort and struggle.

Be miserable. Or motivate yourself. Whatever has to be done, it's always your choice.

Discipline is the bridge between goals and accomplishment.

What you get by achieving your goals is not as important as what you become by achieving your goals.

We should not give up and we should not allow the problem to defeat us.

There are two ways of spreading light: to be the candle or the mirror that reflects it.

Three things cannot be long hidden: the sun, the moon, and the truth.

The face is the mirror of the mind, and eyes without speaking confess the secrets of the heart.

The future belongs to those who believe in the beauty of their dreams.

You just can't beat the person who never gives up.

Education is the most powerful weapon which you can use to change the world.