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

I believe in one thing only, the power of human will.

He who is not a good servant will not be a good master.

The true way to render ourselves happy is to love our work and find in it our pleasure.

The journey is the reward.

You will never be able to escape from your heart. So it's better to listen to what it has to say.

Growth begins when we begin to accept our own weakness.