Alinhamento à direita de duas linhas irregulares à esquerda

Question

Tenho duas pequenas linhas de texto com larguras diferentes. Quero liberá-los à direita, mantendo a justificação à esquerda e a altura da linha do texto anterior.

\documentclass{article}
\usepackage{fontspec} 

\usepackage{lipsum}

\begin{document}

I was yet young in life, which I had begun early; but my intimacy with him was of a recent date: we had been educated at the same schools and university; but his progress through these had preceded mine, and he had been deeply initiated into what is called the world while I was in noviciate noviciate noviciate.

\hfill\vbox{\hbox{Foo}
\hbox{Foobar}}

\end{document}

Answer 1

Você pode usar um tabularcom [t]alinhamento operacional.

\documentclass{article}
\usepackage{fontspec}

\usepackage{lipsum}

\begin{document}

I was yet young in life, which I had begun early; but my intimacy with him was of a recent date: we had been educated at the same schools and university; but his progress through these had preceded mine, and he had been deeply initiated into what is called the world while I was in noviciate noviciate noviciate.

\hspace*{\fill}
\begin{tabular}[t]{l@{}}
Foo\\
Foobar
\end{tabular}

\end{document}

Answer 2

A solução mais simples é colocar \struta no final do texto anterior e dentro de \hbox:

\documentclass{article}
\usepackage[T1]{fontenc} 

\usepackage{lipsum}

\begin{document}

I was yet young in life, which I had begun early; but my intimacy with him
was of a recent date: we had been educated at the same schools and
university; but his progress through these had preceded mine, and he had
been deeply initiated into what is called the world while I was in
noviciate noviciate noviciate.\strut

\hfill\vbox{\hbox{\strut Foo}
\hbox{Foobar}}

\end{document}

Mas usar comandos de boxe primitivos em LaTeX não é recomendado.