Written in a letter to his friend Charles Lyell, this quote is proof that even Charles Darwin had bad days. Even the greatest minds can be hella relatable. Whether you're drinking your morning coffee, pondering evolution over your evening tea, or lamenting the struggle of science while you sip your favorite drink—this mug's for you! It's sturdy and glossy with a vivid print that'll withstand the microwave and dishwasher.

• Ceramic
• 11 oz mug dimensions: 3.79″ (9.6 cm) in height, 3.25″ (8.3 cm) in diameter
• 15 oz mug dimensions: 4.69″ (11.9 cm) in height, 3.35″ (8.5 cm) in diameter
• Dishwasher and microwave safe