Changing the font for a custom environment

Question

I can't figure out how to embed a command like \textbf or something in a newly created environment, I have:

\newenvironment{definition}
  {\begin{quote}}
  {\end{quote}}

I want to customize my definition environment with some additional commands, but if I try something simple like:

\newenvironment{definition}
  {\textbf{\begin{quote}}
  {\end{quote}}}

pdflatex refuses to compile a PDF. Where am I wrong? Is there a limit for a newly created environment?

Answer 1

Use a declaration instead:

\newenvironment{definition}
  {\bfseries\begin{quote}}
  {\end{quote}}

Declarations are like switches, their effect ends when the environment is closed.