Edward Jenner

The joy I feel at the prospect of an annihilation of the smallpox, must be my excuse for writing with such freedom to you.

It is not the business of a philosopher to be always making experiments, but to be always making observations.

The grand object of all my labours has been to render a service to mankind.

I hope that I shall be able to convince the world of the truth of my discovery.

My dear friend, I have at last found a method of preventing the smallpox.

The cowpox protects the human constitution from the infection of the smallpox.

I have been so much engaged in my experiments that I have had little time for anything else.

The satisfaction of doing good is the highest reward.

I have not been without my difficulties and discouragements, but I have persevered.

The greatest pleasure I know is to do a good action by stealth, and to have it found out by accident.

It is a great satisfaction to me to reflect that I have been instrumental in saving so many lives.

The practice of medicine is not merely a trade, but a science and an art.

I have always been an admirer of nature, and have found much instruction in her works.

The more I study nature, the more I am amazed at her wisdom.

My heart is full of gratitude to Providence for having made me an instrument of so much good.

I have been much gratified by the reception my discovery has met with.

The opposition I have met with has only served to confirm me in the truth of my opinions.

I have no doubt that in time my discovery will be universally adopted.

The smallpox is a disease which has been the scourge of mankind for ages.

I have been much indebted to the kindness of my friends for their assistance and encouragement.