“I have no mission. No one has.”

Address to Grand Jury (1885)
Variant: I believed that I had a mission, I believe that I had a mission at this very moment.
The Queen Vs. Louis Riel : Accused and Convicted of the Crime of High Treason. Report of Trial at Regina (1886), p. 147 http://books.google.com/books?id=jLANAAAAQAAJ&output=text
Context: It is true, gentlemen, I believed for years I had a mission, and when I speak of a mission you will understand me not as trying to play the role of insane before the grand jury so as to have a verdict of acquittal upon that ground. I believe that I have a mission, I believe I had a mission at this very time. What encourages me to speak to you with more confidence in all the imperfections of my English way of speaking, it is that I have yet and still that mission, and with the help of God, who is in this box with me, and He is on the side of my lawyers, even with the honorable court, the Crown and the jury, to help me, and to prove by the extraordinary help that there is a Providence to-day in my trial, as there was a Providence in the battles of the Saskatchewan.

As quoted in Created for Excellence : 12 keys to Godly Success (1996) by Kevin Baerg, p. 25

Address to Grand Jury (1885)
Context: I have not assumed to myself that I had a mission. I was working in Manitoba first and I did all I could to get free institutions for Manitoba. They have those institutions today in Manitoba and they try to improve them, while myself who obtained them, I am forgotten as if I was dead. But after I had obtained with the help of others a constitution for Manitoba, when the government at Ottawa was not willing to inaugurate it at the proper time, I have worked till the inauguration should take place and that is why I have been banished for five years. I had to rest five years. I was unwilling to do it. I protested. I said : Oh my God! I offer you all my existence for that cause and please to make of my weakness an instrument to help men in my country. And seeing my intentions, the late Archbishop Bourget said "Riel has no narrow views, he is a man to accomplish great things" and he wrote that letter of which I hope that the Crown has at least a copy. And in another letter when I became what Drs. believed to be, insane, Bishop Bourget wrote again and said "Ye be blessed by God and man and take patience in your evil." Am I not taking patience I Will I be blessed by man as I have been by God?
I say that, I have been blessed by God and I hope that you will not take that as a presumptuous assertion. It has been a great success for me to come through all the dangers I have in that 15 years. If I have not succeeded in wearing a fine coat myself I have at the same time the great consolation of seeing that God has maintained my views; that he has maintained my health sufficiently to go through the world and that he has kept me from bullets when bullets marked my hat.

Address on sentencing (1885)
Context: The Court. has done the work for me, and although at first appearance it seems to be against me, I am so confident in the idea which I have had the honor to express yesterday, that I think it is for good and not for my loss. Up to this moment, I have been considered by a certain party as insane, by another party as a criminal, by another party as a man with whom it was doubtful whether to have any intercourse. So there was hostility and there was contempt, and there was avoidance To-day, by the verdict of the Court, one of these three situations has disappeared.
I suppose that after having been condemned, I will cease to be called a fool, and for me it is a great advantage. I consider it as a great advantage. If I have a mission, I say "If " for the sake of those who doubt, but for my part it means "Since," since I have a mission, I cannot fulfil my mission as long as I am looked upon as an insane being-human being, at the moment that I begin to ascend that scale, I begin to succeed.

Google this: Jean Vanier and what it means to be human http://www.huffingtonpost.com/david-briggs/google-this-jean-vanier-a_b_7484702.html Huffington Post, 02/06/2015
From interviews and talks

Address at Johns Hopkins Hospital (1897); later published in Aequanimitas, and Other Addresses (1905).

You Shall Know Our Velocity! (2002)

Letter (December 21, 1898).
1890s

Adventures of a Bystander (1979) (Autobiography)
1960s - 1980s