Obstacles are those frightful things you see when you take your eyes off the goal.

Obstacles are those frightful things you see when you take your eyes off the goal.

The authority of those who teach is often an obstacle to those who want to learn.

The authority of those who teach is often an obstacle to those who want to learn.

Obstacles are those frightful things you see when you take your eyes off your goal.

Obstacles are those frightful things you see when you take your eyes off your goal.

Obstacles are those frightful things you see when you take your eyes off your goal.

Obstacles are those frightful things you see when you take your eyes off your goal.

Obstacles are things a person sees when he takes his eyes off his goal.

Obstacles are things a person sees when he takes his eyes off his goal.

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.

Only the curious will learn and only the resolute overcome the obstacles to learning. The quest quotient has always excited read more

Only the curious will learn and only the resolute overcome the obstacles to learning. The quest quotient has always excited me more than the intelligence quotient.

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.

The block of granite which was an obstacle in the pathway of the weak becomes a stepping-stone in the pathway read more

The block of granite which was an obstacle in the pathway of the weak becomes a stepping-stone in the pathway of the strong