| To strain at a gnat and swallow a camel |
| To take counsel of one's pillow |
| To take the bull by the horns |
| To teach the dog to bark |
| To tell tales out of school |
| To throw a stone in one's own garden |
| To throw dust in somebody's eyes |
| To throw straws against the wind |
| To treat somebody with a dose of his own medicine |
| To use a steam-hammer to crack nuts |
| To wash one's dirty linen in public |
| To wear one's heart upon one's sleeve |
| To weep over an onion |
| To work with the left hand |
| Tomorrow come never |
| Too many cooks spoil the broth |
| Too much knowledge makes the head bald |
| Too much of a good thing is good for nothing |
| Too much water drowned the miller |
| Too swift arrives as tardy as too slow |
| True blue will never stain |
| True coral needs no painter's brush |
| Truth comes out of the mouths of babes and sucklings |
| Truth is stranger than fiction |
| Truth lies at the bottom of a well |
| Two blacks do not make a white |
| Two heads are better than one |
| Two is company, but three is none |
| Velvet paws hide sharp claws |
| Virtue is its own reward |
| Wait for the cat to jump |
| Walls have ears |
| Wash your dirty linen at home |
| Waste not, want not |
| We know not what is good until we have lost it |
| We never know the value of water till the well is dry |
| We shall see what we shall see |
| We soon believe what we desire |
| Wealth is nothing without health |
| Well begun is half done |
