Tis

Where ignorance is bliss, 'tis folly to be wise.

Source: tatoeba (276999)

Tobacco, divine, rare, superexcellent tobacco, which goes far beyond all the panaceas, potable gold, and philosopher's stones, a sovereign remedy to all diseases...but as it is commonly abused by most men, which take it as tinkers do ale, 'tis a plague, a mischief, a violent purger of goods, lands, health, hellish, devilish and damned tobacco, the ruin and overthrow of body and soul.

Source: tatoeba (411108)

'Tis very warm weather when one's in bed.

Source: tatoeba (909189)

Whether 'tis nobler in the mind to suffer the slings and arrows of outrageous fortune, or to take arms against a sea of troubles, and by opposing end them?

Source: tatoeba (1138691)