mathematical precision

matrimonial alliance

matured reflection

maudlin sentimentalism [maudlin = tearfully sentimental]

mawkish insipidity

maximum intensity

meager evidence

mean trickeries

meaningless confusion

measured cadence

mechanical handicraft

meditatively silent

meek ambition

melancholy musing

mellifluous eloquence [mellifluous = flowing with sweetness or honey]

mellow refinement

melodious plat.i.tudes

melodramatic resource

melting mood

memorable experience

menacing att.i.tude

mendacious tongue [mendacious = false; untrue]

mendicant pilgrim [mendicant = beggar]

mental metamorphosis

mercenary view

merchantable literature

merciful insensibility

merciless censor

mercurial temperament

mere generalization

meretricious allurements [meretricious = plausible but false]

meridian splendor

merited ridicule

merry jest

metallic immobility

metaphysical obscurity

meteoric splendors

methodical regularity

metrical exactness

microscopic minuteness

mighty animosity

mild rejoinder

militant struggles

military autocracy

millennial reign

mimic gestures

minatory shadow [minatory = menacing or threatening]

mincing precision

mingled decorousness

miniature imitations