Despondency is certainly unnecessary.

Just as a person must not err with regard to his own shortcomings, so too, he must know his own positive qualities.

Rules of Writing to the Rebbe

Over the years, this practice has become common among Chabad Chassidim of all views and stripes.

‘My Views on Moshiach’

There you will find an answer to your question with regard to the Moshiach, the Messianic Age and my views on the subject.

The Halachic Progression of the Redemption

I will only add a further significant point, namely that this ruling and Din of the Rambam is not contested by any Posek.

Letter to the King of Morocco

May G-d continue to bestow His generous blessings on your Majesty and royal family, and all the people of Morocco, for a full measure of health and prosperity, both materially and spiritually.

Letter to the King of Spain

Your government and country has played a keynote role in marking this historic event with appropriate celebrations that were emulated in many parts of the world.

The Rebbe’s Opinion On: “Bible Criticism”

You mention, in passing, certain theories by certain Bible critics. But, as you know, it is not a case where these people have a different tradition from ours, going back to all those ancient generations.

Is Islam Avoda Zara?

In the above you will find an answer also to another question of yours, namely whether Jews should encourage conversions to Judaism among non-Jews

Is A Therapist Considered A Physician According To Halacha?

On 8 Teves 5747 (1947), the Rebbe wrote this fascinating letter to a Jewish psychiatrist from Ontario, Canada.

Proof of Existence of G-d

Similarly regarding this question which asks for proof of the truth of the existence of G-d.

Could the Pope Have Saved Jews During the Holocaust?

Does she not know of the terrible tragedy of the millions of Jews who were savagely put to death by the Germans and their cohorts, while the rest of the world the gentiles looked on with complete indifference?

Why to interfere with HaShem's blessing and contemplate a change of sex?

In the light of the above, it is not clear why you should want to interfere with HaShem's blessing and contemplate a change of sex...

There is a Rebbe in Israel

There is a Rebbe in Israel, and he is not bound by the laws of nature, and one who wishes to go by the safest root, in his business or his home and so forth, will not raise a finger without consulting the Rebbe...