Try taking Kipling's poem and making it tell. Then maybe you'll see his poem is show.
There are many elements in the making of manliness and I hope to explain these as follows, with many examples.
IF you can keep your head when all about you Are losing theirs and blaming it on you,
Firstly, there will be times when many others, your friends, colleagues, etc will be confused or worried and unable to cope with various crises (such as battle).
They will be, as they say "losing it" and annoyingly they may well turn on you and blame you for their inadequacies. But if you can maintain your composure that is one small element in the totality of being "a real man."
If you can trust yourself when all men doubt you, But make allowance for their doubting too;
It is extremely important that you examine your thinking at all times and believe in yourself. While you must not be boastful or over-confident it's important that, after self-examination of your knowledge, motives, situational context and so on that your are firm in your beliefs and act with character and leadership and strength of personality. LEAD!
However, try your best as a gentleman to allow for the frailties of others. Forgive them their indiscretions. The fact that they doubt is not solely down to them but a product of their genes, their upbringing, their class, and so on