To accomplish great things, we must not only act, but also dream not only plan, but also believe.

Bitter experience has taught us how fundamental our values are and how great the mission they represent.

To walk around with an ego is a bad thing. To have confidence in yourself is a great thing.

All difficult things have their origin in that which is easy, and great things in that which is small.

Some are born great, some achieve greatness, and some have greatness thrust upon them.

Only passions, great passions can elevate the soul to great things.

My success was not based so much on any great intelligence but on great common sense.

The great thing in the world is not so much where we stand, as in what direction we are moving.

Most great people have attained their greatest success just one step beyond their greatest failure.

Most people say that it is the intellect which makes a great scientist. They are wrong: it is character.