Laughter is involuntary. If it's funny you laugh.
Wonder is involuntary praise.
All beginnings are involuntary.
Most real relationships are involuntary.
For me chivalry isn't dead; it's an involuntary reflex.
Detestation of the high is the involuntary homage of the low.
Liking an author may be as involuntary and improbable as falling in love.
All emotion is involuntary when genuine.
Belief is involuntary; nothing involuntary is meritorious or reprehensible. A man ought not to be considered worse or better for his belief.
Virtue is voluntary, vice involuntary.