As an alternative to using a trimmed version of the text, you can enter a separate summary by choosing the <em>Text (formatted, long, with summary)</em> field type on the <em>Manage fields</em> page. Even when <em>Summary input</em> is enabled, and summaries are provided, you can display <em>trimmed</em> text nonetheless by choosing the appropriate format on the <em>Manage display</em> page.