Our panel of 91 professional philosophers has responded to

154
 questions about 
Sex
282
 questions about 
Knowledge
67
 questions about 
Feminism
96
 questions about 
Time
574
 questions about 
Philosophy
58
 questions about 
Punishment
151
 questions about 
Existence
374
 questions about 
Logic
110
 questions about 
Biology
218
 questions about 
Education
77
 questions about 
Emotion
284
 questions about 
Mind
392
 questions about 
Religion
70
 questions about 
Truth
80
 questions about 
Death
27
 questions about 
Gender
75
 questions about 
Beauty
36
 questions about 
Literature
134
 questions about 
Love
2
 questions about 
Action
1280
 questions about 
Ethics
34
 questions about 
Music
221
 questions about 
Value
31
 questions about 
Space
23
 questions about 
History
110
 questions about 
Animals
4
 questions about 
Economics
105
 questions about 
Art
117
 questions about 
Children
170
 questions about 
Freedom
2
 questions about 
Culture
89
 questions about 
Law
68
 questions about 
Happiness
43
 questions about 
Color
287
 questions about 
Language
244
 questions about 
Justice
208
 questions about 
Science
51
 questions about 
War
69
 questions about 
Business
88
 questions about 
Physics
81
 questions about 
Identity
32
 questions about 
Sport
54
 questions about 
Medicine
5
 questions about 
Euthanasia
124
 questions about 
Profession
58
 questions about 
Abortion
75
 questions about 
Perception
39
 questions about 
Race
24
 questions about 
Suicide

Question of the Day

The syllogism in question is not valid. Nothing logically guarantees that the set of single girls and the set of sad girls overlap. Even if both sets have members, it does not follow that they have any members in common. Compare: Some polygons are squares. Some polygons are triangles. But it is false that some polygons are square triangles.