The greatest obstacle to discovery is not ignorance -- it is the illusion of knowledge.

The greatest obstacle to discovery is not ignorance -- it is the illusion of knowledge.

Obstacles cannot crush me. Every obstacle yields to stern resolve. He who is fixed to a star does not change read more

Obstacles cannot crush me. Every obstacle yields to stern resolve. He who is fixed to a star does not change his mind.

When you get right down to the root of the meaning of the word "succeed," you find that it simply read more

When you get right down to the root of the meaning of the word "succeed," you find that it simply means to follow through.

All the adversity I've had in my life, all my troubles and obstacles, have strengthened me... You may not realize read more

All the adversity I've had in my life, all my troubles and obstacles, have strengthened me... You may not realize it when it happens, but a kick in the teeth may be the best thing in the world for you.

Whether you think you can or think you can't - you are right

Whether you think you can or think you can't - you are right

An obstacle is often an unrecognized opportunity

An obstacle is often an unrecognized opportunity

Defeat may test you; it need not stop you. If at first you don't succeed, try another way. For every read more

Defeat may test you; it need not stop you. If at first you don't succeed, try another way. For every obstacle there is a solution. Nothing in the world can take the place of persistence. The greatest mistake is giving up.

The greatest obstacle to progress is prejudice.

The greatest obstacle to progress is prejudice.

Life's up and downs provide windows of opportunity to determine your values and goals - Think of using all obstacles read more

Life's up and downs provide windows of opportunity to determine your values and goals - Think of using all obstacles as stepping stones to build the life you want