A single death is a tragedy; a million deaths is a statistic.
He deserves Paradise who makes his companions laugh.
There is only one success – to be able to spend your life in your own way.
I am in earnest; I will not equivocate; I will not excuse; I will not retreat a single inch; and I will be heard.
Opportunity is missed by most people because it is dressed in overalls and looks like work.
The greatest obstacle to discovery is not ignorance – it is the illusion of knowledge.
The greatest discovery of my generation is that a human being can alter his life by altering his attitudes of mind.
If you are distressed by anything external, the pain is not due to the thing itself, but to your estimate of it; and this you have the power to revoke at any moment.